diff --git a/crates/oxide_builtins/src/temporal/mod.rs b/crates/oxide_builtins/src/temporal/mod.rs
index 03174e7e..efcb7b3a 100644
--- a/crates/oxide_builtins/src/temporal/mod.rs
+++ b/crates/oxide_builtins/src/temporal/mod.rs
@@ -7,6 +7,7 @@ mod plain_date_time;
 mod plain_month_day;
 mod plain_time;
 mod plain_year_month;
+mod time_zone;
 mod zoned_date_time;
 
 use common::*;
diff --git a/crates/oxide_builtins/src/temporal/time_zone.rs b/crates/oxide_builtins/src/temporal/time_zone.rs
new file mode 100644
index 00000000..fcfc9ceb
--- /dev/null
+++ b/crates/oxide_builtins/src/temporal/time_zone.rs
@@ -0,0 +1,1299 @@
+//! 时区数据源与 TZif 解析器：IANA tzdata 2026b 全量树 vendored 于 `third_party/tzdb/`，
+//! 引擎内置 legacy 别名表，不读宿主系统 zoneinfo。
+//!
+//! 关键约定：
+//! - 数据版本钉住 tzdata 2026b，全量树随仓库，保证各环境逐字节一致；legacy 区名
+//!   （2026b 已移除）由引擎内 `LEGACY_ALIASES` 表解析，独立于数据版本。
+//! - 偏移一律以秒存（i32），保亚分钟精度（LMT、Lord Howe 半小时 DST 等）；
+//!   `transitions` 按纪元秒严格升序，最后一次 transition 之后的偏移预存于 `last_offset`。
+//! - 闰秒不建模：闰秒表只用于推进解析指针，Temporal 时间线为连续纳秒轴。
+//! - 刷新程序：从宿主 /usr/share/zoneinfo 以 `cp -rL` 复制 11 个区域目录加顶层区文件
+//!   （排除机器相关的 localtime 与源文件 tzdata.zi / leap-seconds.list），并更新本
+//!   注释的版本行。
+
+use std::sync::LazyLock;
+
+/// 单个时区的解析结果：transition 表加偏移查找所需的预存值。
+///
+/// `transitions` 为 `(纪元秒, 该时刻起生效的偏移秒)`，按纪元秒严格升序；
+/// 早于首个 transition 的偏移取 `lmt_offset`（首个 time type，即 LMT），
+/// 晚于末个 transition 的偏移取 `last_offset`（POSIX TZ 串语义，与末次 transition 一致）。
+pub(crate) struct TzifZone {
+    lmt_offset: i32,
+    transitions: Vec<(i64, i32)>,
+    last_offset: i32,
+}
+
+/// TZif 解析失败原因。
+#[derive(Debug)]
+pub(crate) enum TzifError {
+    /// 文件在声明的块边界前截断。
+    Truncated,
+    /// 魔数不是 `TZif`。
+    BadMagic,
+    /// 版本字节不是 0 / 2 / 3 / 4。
+    BadVersion,
+}
+
+/// TZif 头的 6 个计数字段（isutcnt / isstdcnt / leapcnt / timecnt / typecnt / charcnt）。
+#[derive(Clone, Copy)]
+struct Counts {
+    isutcnt: u32,
+    isstdcnt: u32,
+    leapcnt: u32,
+    timecnt: u32,
+    typecnt: u32,
+    charcnt: u32,
+}
+
+/// 单个数据块的解析结果：transition 时间、transition 类型索引、本地时间类型偏移。
+struct ParsedBlock {
+    trans: Vec<i64>,
+    ttypes: Vec<u8>,
+    types: Vec<i32>,
+}
+
+/// 读 44 字节头的 6 个计数字段。
+///
+/// # 边界与前提
+/// - 调用方须保证 `off + 44` 不越界（本函数自行校验）。
+///
+/// # 注意事项
+/// - 计数字段从偏移 20 起（magic 4 + version 1 + 保留 15）。
+fn read_counts(bytes: &[u8], off: usize) -> Result<Counts, TzifError> {
+    if bytes.len() < off + 44 {
+        return Err(TzifError::Truncated);
+    }
+    let d = |i: usize| u32::from_be_bytes(bytes[off + 20 + i * 4..off + 24 + i * 4].try_into().unwrap());
+    Ok(Counts {
+        isutcnt: d(0),
+        isstdcnt: d(1),
+        leapcnt: d(2),
+        timecnt: d(3),
+        typecnt: d(4),
+        charcnt: d(5),
+    })
+}
+
+/// 数据块总字节数（transition 时间 + 类型 + 本地时间类型记录 + 区名 + 闰秒 + 指示位）。
+fn block_size(c: &Counts, time_size: usize) -> usize {
+    c.timecnt as usize * time_size
+        + c.timecnt as usize
+        + c.typecnt as usize * 6
+        + c.charcnt as usize
+        + c.leapcnt as usize * (time_size + 4)
+        + c.isstdcnt as usize
+        + c.isutcnt as usize
+}
+
+/// 读一个数据块：transition 时间、transition 类型索引、本地时间类型偏移。
+///
+/// # 边界与前提
+/// - 调用方须保证块完整（本函数按 `block_size` 校验总长）。
+/// - `time_size` 为 4（v1）或 8（v2+）。
+///
+/// # 注意事项
+/// - transition 类型索引越界（超出 typecnt）视为截断，防越界读。
+fn read_block(bytes: &[u8], off: usize, c: &Counts, time_size: usize) -> Result<ParsedBlock, TzifError> {
+    let need = off + block_size(c, time_size);
+    if bytes.len() < need {
+        return Err(TzifError::Truncated);
+    }
+    let mut p = off;
+
+    // transition 时间（有符号，v1 为 32 位、v2+ 为 64 位）。
+    let mut trans = Vec::with_capacity(c.timecnt as usize);
+    for _ in 0..c.timecnt {
+        let v = if time_size == 8 {
+            i64::from_be_bytes(bytes[p..p + 8].try_into().unwrap())
+        } else {
+            i32::from_be_bytes(bytes[p..p + 4].try_into().unwrap()) as i64
+        };
+        trans.push(v);
+        p += time_size;
+    }
+
+    // transition 类型索引（每 transition 一字节）。
+    let ttypes = bytes[p..p + c.timecnt as usize].to_vec();
+    p += c.timecnt as usize;
+
+    // 本地时间类型记录（6 字节：utoff 4 + isdst 1 + idx 1），只取 utoff。
+    let mut types = Vec::with_capacity(c.typecnt as usize);
+    for _ in 0..c.typecnt {
+        let utoff = i32::from_be_bytes(bytes[p..p + 4].try_into().unwrap());
+        types.push(utoff);
+        p += 6;
+    }
+
+    for &idx in &ttypes {
+        if idx >= c.typecnt as u8 {
+            return Err(TzifError::Truncated);
+        }
+    }
+    Ok(ParsedBlock { trans, ttypes, types })
+}
+
+/// 解析 TZif 二进制为 `TzifZone`。
+///
+/// # 步骤
+/// 1. 校验魔数与版本字节。
+/// 2. 读 v1 头；版本 ≥ 2 时跳过 v1 块、读 v2+ 头，一律用 64 位块（1970 年前
+///    transition 为负值自然容纳）；版本 1 用 32 位块。
+/// 3. 由 transition 类型索引与本地时间类型记录组装 `(纪元秒, 偏移秒)` 表；
+///    LMT 取首个 time type，末偏移取末次 transition 的偏移。
+///
+/// # 边界与前提
+/// - 闰秒表按 `leapcnt * (time_size + 4)` 推进指针，不建模。
+/// - POSIX TZ 串（footer）读出后丢弃：末偏移已由末次 transition 给出。
+///
+/// # 注意事项
+/// - 纯解析，无副作用；调用方负责把结果挂到静态表。
+pub(crate) fn parse_tzif(bytes: &[u8]) -> Result<TzifZone, TzifError> {
+    if bytes.len() < 44 {
+        return Err(TzifError::Truncated);
+    }
+    if &bytes[0..4] != b"TZif" {
+        return Err(TzifError::BadMagic);
+    }
+    let version = bytes[4];
+    if !matches!(version, 0 | b'2' | b'3' | b'4') {
+        return Err(TzifError::BadVersion);
+    }
+
+    // v1 头计数（版本 ≥ 2 时 v1 块是占位，只用于算跳过长度）。
+    let c1 = read_counts(bytes, 0)?;
+
+    let block = if version >= b'2' {
+        let v1_size = block_size(&c1, 4);
+        let off = 44 + v1_size;
+        if bytes.len() < off + 44 {
+            return Err(TzifError::Truncated);
+        }
+        if &bytes[off..off + 4] != b"TZif" {
+            return Err(TzifError::BadMagic);
+        }
+        let c2 = read_counts(bytes, off)?;
+        read_block(bytes, off + 44, &c2, 8)?
+    } else {
+        read_block(bytes, 44, &c1, 4)?
+    };
+
+    // LMT 是首个 time type 的偏移；末偏移取末次 transition 的偏移（POSIX TZ 串语义）。
+    let lmt_offset = block.types.first().copied().unwrap_or(0);
+    let transitions: Vec<(i64, i32)> = block
+        .trans
+        .iter()
+        .enumerate()
+        .map(|(i, &t)| (t, block.types[block.ttypes[i] as usize]))
+        .collect();
+    let last_offset = transitions.last().map(|&(_, o)| o).unwrap_or(lmt_offset);
+    Ok(TzifZone {
+        lmt_offset,
+        transitions,
+        last_offset,
+    })
+}
+
+const ZONE_FILES: &[(&str, &[u8])] = &[
+    ("Africa/Abidjan", include_bytes!("../../../../third_party/tzdb/Africa/Abidjan")),
+    ("Africa/Accra", include_bytes!("../../../../third_party/tzdb/Africa/Accra")),
+    ("Africa/Addis_Ababa", include_bytes!("../../../../third_party/tzdb/Africa/Addis_Ababa")),
+    ("Africa/Algiers", include_bytes!("../../../../third_party/tzdb/Africa/Algiers")),
+    ("Africa/Asmara", include_bytes!("../../../../third_party/tzdb/Africa/Asmara")),
+    ("Africa/Bamako", include_bytes!("../../../../third_party/tzdb/Africa/Bamako")),
+    ("Africa/Bangui", include_bytes!("../../../../third_party/tzdb/Africa/Bangui")),
+    ("Africa/Banjul", include_bytes!("../../../../third_party/tzdb/Africa/Banjul")),
+    ("Africa/Bissau", include_bytes!("../../../../third_party/tzdb/Africa/Bissau")),
+    ("Africa/Blantyre", include_bytes!("../../../../third_party/tzdb/Africa/Blantyre")),
+    ("Africa/Brazzaville", include_bytes!("../../../../third_party/tzdb/Africa/Brazzaville")),
+    ("Africa/Bujumbura", include_bytes!("../../../../third_party/tzdb/Africa/Bujumbura")),
+    ("Africa/Cairo", include_bytes!("../../../../third_party/tzdb/Africa/Cairo")),
+    ("Africa/Casablanca", include_bytes!("../../../../third_party/tzdb/Africa/Casablanca")),
+    ("Africa/Ceuta", include_bytes!("../../../../third_party/tzdb/Africa/Ceuta")),
+    ("Africa/Conakry", include_bytes!("../../../../third_party/tzdb/Africa/Conakry")),
+    ("Africa/Dakar", include_bytes!("../../../../third_party/tzdb/Africa/Dakar")),
+    (
+        "Africa/Dar_es_Salaam",
+        include_bytes!("../../../../third_party/tzdb/Africa/Dar_es_Salaam"),
+    ),
+    ("Africa/Djibouti", include_bytes!("../../../../third_party/tzdb/Africa/Djibouti")),
+    ("Africa/Douala", include_bytes!("../../../../third_party/tzdb/Africa/Douala")),
+    ("Africa/El_Aaiun", include_bytes!("../../../../third_party/tzdb/Africa/El_Aaiun")),
+    ("Africa/Freetown", include_bytes!("../../../../third_party/tzdb/Africa/Freetown")),
+    ("Africa/Gaborone", include_bytes!("../../../../third_party/tzdb/Africa/Gaborone")),
+    ("Africa/Harare", include_bytes!("../../../../third_party/tzdb/Africa/Harare")),
+    ("Africa/Johannesburg", include_bytes!("../../../../third_party/tzdb/Africa/Johannesburg")),
+    ("Africa/Juba", include_bytes!("../../../../third_party/tzdb/Africa/Juba")),
+    ("Africa/Kampala", include_bytes!("../../../../third_party/tzdb/Africa/Kampala")),
+    ("Africa/Khartoum", include_bytes!("../../../../third_party/tzdb/Africa/Khartoum")),
+    ("Africa/Kigali", include_bytes!("../../../../third_party/tzdb/Africa/Kigali")),
+    ("Africa/Kinshasa", include_bytes!("../../../../third_party/tzdb/Africa/Kinshasa")),
+    ("Africa/Lagos", include_bytes!("../../../../third_party/tzdb/Africa/Lagos")),
+    ("Africa/Libreville", include_bytes!("../../../../third_party/tzdb/Africa/Libreville")),
+    ("Africa/Lome", include_bytes!("../../../../third_party/tzdb/Africa/Lome")),
+    ("Africa/Luanda", include_bytes!("../../../../third_party/tzdb/Africa/Luanda")),
+    ("Africa/Lubumbashi", include_bytes!("../../../../third_party/tzdb/Africa/Lubumbashi")),
+    ("Africa/Lusaka", include_bytes!("../../../../third_party/tzdb/Africa/Lusaka")),
+    ("Africa/Malabo", include_bytes!("../../../../third_party/tzdb/Africa/Malabo")),
+    ("Africa/Maputo", include_bytes!("../../../../third_party/tzdb/Africa/Maputo")),
+    ("Africa/Maseru", include_bytes!("../../../../third_party/tzdb/Africa/Maseru")),
+    ("Africa/Mbabane", include_bytes!("../../../../third_party/tzdb/Africa/Mbabane")),
+    ("Africa/Mogadishu", include_bytes!("../../../../third_party/tzdb/Africa/Mogadishu")),
+    ("Africa/Monrovia", include_bytes!("../../../../third_party/tzdb/Africa/Monrovia")),
+    ("Africa/Nairobi", include_bytes!("../../../../third_party/tzdb/Africa/Nairobi")),
+    ("Africa/Ndjamena", include_bytes!("../../../../third_party/tzdb/Africa/Ndjamena")),
+    ("Africa/Niamey", include_bytes!("../../../../third_party/tzdb/Africa/Niamey")),
+    ("Africa/Nouakchott", include_bytes!("../../../../third_party/tzdb/Africa/Nouakchott")),
+    ("Africa/Ouagadougou", include_bytes!("../../../../third_party/tzdb/Africa/Ouagadougou")),
+    ("Africa/Porto-Novo", include_bytes!("../../../../third_party/tzdb/Africa/Porto-Novo")),
+    ("Africa/Sao_Tome", include_bytes!("../../../../third_party/tzdb/Africa/Sao_Tome")),
+    ("Africa/Timbuktu", include_bytes!("../../../../third_party/tzdb/Africa/Timbuktu")),
+    ("Africa/Tripoli", include_bytes!("../../../../third_party/tzdb/Africa/Tripoli")),
+    ("Africa/Tunis", include_bytes!("../../../../third_party/tzdb/Africa/Tunis")),
+    ("Africa/Windhoek", include_bytes!("../../../../third_party/tzdb/Africa/Windhoek")),
+    ("America/Adak", include_bytes!("../../../../third_party/tzdb/America/Adak")),
+    ("America/Anchorage", include_bytes!("../../../../third_party/tzdb/America/Anchorage")),
+    ("America/Anguilla", include_bytes!("../../../../third_party/tzdb/America/Anguilla")),
+    ("America/Antigua", include_bytes!("../../../../third_party/tzdb/America/Antigua")),
+    ("America/Araguaina", include_bytes!("../../../../third_party/tzdb/America/Araguaina")),
+    (
+        "America/Argentina/Buenos_Aires",
+        include_bytes!("../../../../third_party/tzdb/America/Argentina/Buenos_Aires"),
+    ),
+    (
+        "America/Argentina/Catamarca",
+        include_bytes!("../../../../third_party/tzdb/America/Argentina/Catamarca"),
+    ),
+    (
+        "America/Argentina/Cordoba",
+        include_bytes!("../../../../third_party/tzdb/America/Argentina/Cordoba"),
+    ),
+    (
+        "America/Argentina/Jujuy",
+        include_bytes!("../../../../third_party/tzdb/America/Argentina/Jujuy"),
+    ),
+    (
+        "America/Argentina/La_Rioja",
+        include_bytes!("../../../../third_party/tzdb/America/Argentina/La_Rioja"),
+    ),
+    (
+        "America/Argentina/Mendoza",
+        include_bytes!("../../../../third_party/tzdb/America/Argentina/Mendoza"),
+    ),
+    (
+        "America/Argentina/Rio_Gallegos",
+        include_bytes!("../../../../third_party/tzdb/America/Argentina/Rio_Gallegos"),
+    ),
+    (
+        "America/Argentina/Salta",
+        include_bytes!("../../../../third_party/tzdb/America/Argentina/Salta"),
+    ),
+    (
+        "America/Argentina/San_Juan",
+        include_bytes!("../../../../third_party/tzdb/America/Argentina/San_Juan"),
+    ),
+    (
+        "America/Argentina/San_Luis",
+        include_bytes!("../../../../third_party/tzdb/America/Argentina/San_Luis"),
+    ),
+    (
+        "America/Argentina/Tucuman",
+        include_bytes!("../../../../third_party/tzdb/America/Argentina/Tucuman"),
+    ),
+    (
+        "America/Argentina/Ushuaia",
+        include_bytes!("../../../../third_party/tzdb/America/Argentina/Ushuaia"),
+    ),
+    ("America/Aruba", include_bytes!("../../../../third_party/tzdb/America/Aruba")),
+    ("America/Asuncion", include_bytes!("../../../../third_party/tzdb/America/Asuncion")),
+    ("America/Atikokan", include_bytes!("../../../../third_party/tzdb/America/Atikokan")),
+    ("America/Atka", include_bytes!("../../../../third_party/tzdb/America/Atka")),
+    ("America/Bahia", include_bytes!("../../../../third_party/tzdb/America/Bahia")),
+    (
+        "America/Bahia_Banderas",
+        include_bytes!("../../../../third_party/tzdb/America/Bahia_Banderas"),
+    ),
+    ("America/Barbados", include_bytes!("../../../../third_party/tzdb/America/Barbados")),
+    ("America/Belem", include_bytes!("../../../../third_party/tzdb/America/Belem")),
+    ("America/Belize", include_bytes!("../../../../third_party/tzdb/America/Belize")),
+    (
+        "America/Blanc-Sablon",
+        include_bytes!("../../../../third_party/tzdb/America/Blanc-Sablon"),
+    ),
+    ("America/Boa_Vista", include_bytes!("../../../../third_party/tzdb/America/Boa_Vista")),
+    ("America/Bogota", include_bytes!("../../../../third_party/tzdb/America/Bogota")),
+    ("America/Boise", include_bytes!("../../../../third_party/tzdb/America/Boise")),
+    (
+        "America/Cambridge_Bay",
+        include_bytes!("../../../../third_party/tzdb/America/Cambridge_Bay"),
+    ),
+    (
+        "America/Campo_Grande",
+        include_bytes!("../../../../third_party/tzdb/America/Campo_Grande"),
+    ),
+    ("America/Cancun", include_bytes!("../../../../third_party/tzdb/America/Cancun")),
+    ("America/Caracas", include_bytes!("../../../../third_party/tzdb/America/Caracas")),
+    ("America/Cayenne", include_bytes!("../../../../third_party/tzdb/America/Cayenne")),
+    ("America/Cayman", include_bytes!("../../../../third_party/tzdb/America/Cayman")),
+    ("America/Chicago", include_bytes!("../../../../third_party/tzdb/America/Chicago")),
+    ("America/Chihuahua", include_bytes!("../../../../third_party/tzdb/America/Chihuahua")),
+    (
+        "America/Ciudad_Juarez",
+        include_bytes!("../../../../third_party/tzdb/America/Ciudad_Juarez"),
+    ),
+    (
+        "America/Coral_Harbour",
+        include_bytes!("../../../../third_party/tzdb/America/Coral_Harbour"),
+    ),
+    ("America/Costa_Rica", include_bytes!("../../../../third_party/tzdb/America/Costa_Rica")),
+    ("America/Coyhaique", include_bytes!("../../../../third_party/tzdb/America/Coyhaique")),
+    ("America/Creston", include_bytes!("../../../../third_party/tzdb/America/Creston")),
+    ("America/Cuiaba", include_bytes!("../../../../third_party/tzdb/America/Cuiaba")),
+    ("America/Curacao", include_bytes!("../../../../third_party/tzdb/America/Curacao")),
+    (
+        "America/Danmarkshavn",
+        include_bytes!("../../../../third_party/tzdb/America/Danmarkshavn"),
+    ),
+    ("America/Dawson", include_bytes!("../../../../third_party/tzdb/America/Dawson")),
+    (
+        "America/Dawson_Creek",
+        include_bytes!("../../../../third_party/tzdb/America/Dawson_Creek"),
+    ),
+    ("America/Denver", include_bytes!("../../../../third_party/tzdb/America/Denver")),
+    ("America/Detroit", include_bytes!("../../../../third_party/tzdb/America/Detroit")),
+    ("America/Dominica", include_bytes!("../../../../third_party/tzdb/America/Dominica")),
+    ("America/Edmonton", include_bytes!("../../../../third_party/tzdb/America/Edmonton")),
+    ("America/Eirunepe", include_bytes!("../../../../third_party/tzdb/America/Eirunepe")),
+    ("America/El_Salvador", include_bytes!("../../../../third_party/tzdb/America/El_Salvador")),
+    ("America/Ensenada", include_bytes!("../../../../third_party/tzdb/America/Ensenada")),
+    ("America/Fort_Nelson", include_bytes!("../../../../third_party/tzdb/America/Fort_Nelson")),
+    ("America/Fortaleza", include_bytes!("../../../../third_party/tzdb/America/Fortaleza")),
+    ("America/Glace_Bay", include_bytes!("../../../../third_party/tzdb/America/Glace_Bay")),
+    ("America/Goose_Bay", include_bytes!("../../../../third_party/tzdb/America/Goose_Bay")),
+    ("America/Grand_Turk", include_bytes!("../../../../third_party/tzdb/America/Grand_Turk")),
+    ("America/Grenada", include_bytes!("../../../../third_party/tzdb/America/Grenada")),
+    ("America/Guadeloupe", include_bytes!("../../../../third_party/tzdb/America/Guadeloupe")),
+    ("America/Guatemala", include_bytes!("../../../../third_party/tzdb/America/Guatemala")),
+    ("America/Guayaquil", include_bytes!("../../../../third_party/tzdb/America/Guayaquil")),
+    ("America/Guyana", include_bytes!("../../../../third_party/tzdb/America/Guyana")),
+    ("America/Halifax", include_bytes!("../../../../third_party/tzdb/America/Halifax")),
+    ("America/Havana", include_bytes!("../../../../third_party/tzdb/America/Havana")),
+    ("America/Hermosillo", include_bytes!("../../../../third_party/tzdb/America/Hermosillo")),
+    (
+        "America/Indiana/Indianapolis",
+        include_bytes!("../../../../third_party/tzdb/America/Indiana/Indianapolis"),
+    ),
+    (
+        "America/Indiana/Knox",
+        include_bytes!("../../../../third_party/tzdb/America/Indiana/Knox"),
+    ),
+    (
+        "America/Indiana/Marengo",
+        include_bytes!("../../../../third_party/tzdb/America/Indiana/Marengo"),
+    ),
+    (
+        "America/Indiana/Petersburg",
+        include_bytes!("../../../../third_party/tzdb/America/Indiana/Petersburg"),
+    ),
+    (
+        "America/Indiana/Tell_City",
+        include_bytes!("../../../../third_party/tzdb/America/Indiana/Tell_City"),
+    ),
+    (
+        "America/Indiana/Vevay",
+        include_bytes!("../../../../third_party/tzdb/America/Indiana/Vevay"),
+    ),
+    (
+        "America/Indiana/Vincennes",
+        include_bytes!("../../../../third_party/tzdb/America/Indiana/Vincennes"),
+    ),
+    (
+        "America/Indiana/Winamac",
+        include_bytes!("../../../../third_party/tzdb/America/Indiana/Winamac"),
+    ),
+    ("America/Inuvik", include_bytes!("../../../../third_party/tzdb/America/Inuvik")),
+    ("America/Iqaluit", include_bytes!("../../../../third_party/tzdb/America/Iqaluit")),
+    ("America/Jamaica", include_bytes!("../../../../third_party/tzdb/America/Jamaica")),
+    ("America/Juneau", include_bytes!("../../../../third_party/tzdb/America/Juneau")),
+    (
+        "America/Kentucky/Louisville",
+        include_bytes!("../../../../third_party/tzdb/America/Kentucky/Louisville"),
+    ),
+    (
+        "America/Kentucky/Monticello",
+        include_bytes!("../../../../third_party/tzdb/America/Kentucky/Monticello"),
+    ),
+    ("America/Kralendijk", include_bytes!("../../../../third_party/tzdb/America/Kralendijk")),
+    ("America/La_Paz", include_bytes!("../../../../third_party/tzdb/America/La_Paz")),
+    ("America/Lima", include_bytes!("../../../../third_party/tzdb/America/Lima")),
+    ("America/Los_Angeles", include_bytes!("../../../../third_party/tzdb/America/Los_Angeles")),
+    (
+        "America/Lower_Princes",
+        include_bytes!("../../../../third_party/tzdb/America/Lower_Princes"),
+    ),
+    ("America/Maceio", include_bytes!("../../../../third_party/tzdb/America/Maceio")),
+    ("America/Managua", include_bytes!("../../../../third_party/tzdb/America/Managua")),
+    ("America/Manaus", include_bytes!("../../../../third_party/tzdb/America/Manaus")),
+    ("America/Marigot", include_bytes!("../../../../third_party/tzdb/America/Marigot")),
+    ("America/Martinique", include_bytes!("../../../../third_party/tzdb/America/Martinique")),
+    ("America/Matamoros", include_bytes!("../../../../third_party/tzdb/America/Matamoros")),
+    ("America/Mazatlan", include_bytes!("../../../../third_party/tzdb/America/Mazatlan")),
+    ("America/Menominee", include_bytes!("../../../../third_party/tzdb/America/Menominee")),
+    ("America/Merida", include_bytes!("../../../../third_party/tzdb/America/Merida")),
+    ("America/Metlakatla", include_bytes!("../../../../third_party/tzdb/America/Metlakatla")),
+    ("America/Mexico_City", include_bytes!("../../../../third_party/tzdb/America/Mexico_City")),
+    ("America/Miquelon", include_bytes!("../../../../third_party/tzdb/America/Miquelon")),
+    ("America/Moncton", include_bytes!("../../../../third_party/tzdb/America/Moncton")),
+    ("America/Monterrey", include_bytes!("../../../../third_party/tzdb/America/Monterrey")),
+    ("America/Montevideo", include_bytes!("../../../../third_party/tzdb/America/Montevideo")),
+    ("America/Montreal", include_bytes!("../../../../third_party/tzdb/America/Montreal")),
+    ("America/Montserrat", include_bytes!("../../../../third_party/tzdb/America/Montserrat")),
+    ("America/Nassau", include_bytes!("../../../../third_party/tzdb/America/Nassau")),
+    ("America/New_York", include_bytes!("../../../../third_party/tzdb/America/New_York")),
+    ("America/Nipigon", include_bytes!("../../../../third_party/tzdb/America/Nipigon")),
+    ("America/Nome", include_bytes!("../../../../third_party/tzdb/America/Nome")),
+    ("America/Noronha", include_bytes!("../../../../third_party/tzdb/America/Noronha")),
+    (
+        "America/North_Dakota/Beulah",
+        include_bytes!("../../../../third_party/tzdb/America/North_Dakota/Beulah"),
+    ),
+    (
+        "America/North_Dakota/Center",
+        include_bytes!("../../../../third_party/tzdb/America/North_Dakota/Center"),
+    ),
+    (
+        "America/North_Dakota/New_Salem",
+        include_bytes!("../../../../third_party/tzdb/America/North_Dakota/New_Salem"),
+    ),
+    ("America/Nuuk", include_bytes!("../../../../third_party/tzdb/America/Nuuk")),
+    ("America/Ojinaga", include_bytes!("../../../../third_party/tzdb/America/Ojinaga")),
+    ("America/Panama", include_bytes!("../../../../third_party/tzdb/America/Panama")),
+    ("America/Pangnirtung", include_bytes!("../../../../third_party/tzdb/America/Pangnirtung")),
+    ("America/Paramaribo", include_bytes!("../../../../third_party/tzdb/America/Paramaribo")),
+    ("America/Phoenix", include_bytes!("../../../../third_party/tzdb/America/Phoenix")),
+    (
+        "America/Port-au-Prince",
+        include_bytes!("../../../../third_party/tzdb/America/Port-au-Prince"),
+    ),
+    (
+        "America/Port_of_Spain",
+        include_bytes!("../../../../third_party/tzdb/America/Port_of_Spain"),
+    ),
+    ("America/Porto_Acre", include_bytes!("../../../../third_party/tzdb/America/Porto_Acre")),
+    ("America/Porto_Velho", include_bytes!("../../../../third_party/tzdb/America/Porto_Velho")),
+    ("America/Puerto_Rico", include_bytes!("../../../../third_party/tzdb/America/Puerto_Rico")),
+    (
+        "America/Punta_Arenas",
+        include_bytes!("../../../../third_party/tzdb/America/Punta_Arenas"),
+    ),
+    ("America/Rainy_River", include_bytes!("../../../../third_party/tzdb/America/Rainy_River")),
+    (
+        "America/Rankin_Inlet",
+        include_bytes!("../../../../third_party/tzdb/America/Rankin_Inlet"),
+    ),
+    ("America/Recife", include_bytes!("../../../../third_party/tzdb/America/Recife")),
+    ("America/Regina", include_bytes!("../../../../third_party/tzdb/America/Regina")),
+    ("America/Resolute", include_bytes!("../../../../third_party/tzdb/America/Resolute")),
+    ("America/Rio_Branco", include_bytes!("../../../../third_party/tzdb/America/Rio_Branco")),
+    (
+        "America/Santa_Isabel",
+        include_bytes!("../../../../third_party/tzdb/America/Santa_Isabel"),
+    ),
+    ("America/Santarem", include_bytes!("../../../../third_party/tzdb/America/Santarem")),
+    ("America/Santiago", include_bytes!("../../../../third_party/tzdb/America/Santiago")),
+    (
+        "America/Santo_Domingo",
+        include_bytes!("../../../../third_party/tzdb/America/Santo_Domingo"),
+    ),
+    ("America/Sao_Paulo", include_bytes!("../../../../third_party/tzdb/America/Sao_Paulo")),
+    (
+        "America/Scoresbysund",
+        include_bytes!("../../../../third_party/tzdb/America/Scoresbysund"),
+    ),
+    ("America/Shiprock", include_bytes!("../../../../third_party/tzdb/America/Shiprock")),
+    ("America/Sitka", include_bytes!("../../../../third_party/tzdb/America/Sitka")),
+    (
+        "America/St_Barthelemy",
+        include_bytes!("../../../../third_party/tzdb/America/St_Barthelemy"),
+    ),
+    ("America/St_Johns", include_bytes!("../../../../third_party/tzdb/America/St_Johns")),
+    ("America/St_Kitts", include_bytes!("../../../../third_party/tzdb/America/St_Kitts")),
+    ("America/St_Lucia", include_bytes!("../../../../third_party/tzdb/America/St_Lucia")),
+    ("America/St_Thomas", include_bytes!("../../../../third_party/tzdb/America/St_Thomas")),
+    ("America/St_Vincent", include_bytes!("../../../../third_party/tzdb/America/St_Vincent")),
+    (
+        "America/Swift_Current",
+        include_bytes!("../../../../third_party/tzdb/America/Swift_Current"),
+    ),
+    ("America/Tegucigalpa", include_bytes!("../../../../third_party/tzdb/America/Tegucigalpa")),
+    ("America/Thule", include_bytes!("../../../../third_party/tzdb/America/Thule")),
+    ("America/Thunder_Bay", include_bytes!("../../../../third_party/tzdb/America/Thunder_Bay")),
+    ("America/Tijuana", include_bytes!("../../../../third_party/tzdb/America/Tijuana")),
+    ("America/Toronto", include_bytes!("../../../../third_party/tzdb/America/Toronto")),
+    ("America/Tortola", include_bytes!("../../../../third_party/tzdb/America/Tortola")),
+    ("America/Vancouver", include_bytes!("../../../../third_party/tzdb/America/Vancouver")),
+    ("America/Virgin", include_bytes!("../../../../third_party/tzdb/America/Virgin")),
+    ("America/Whitehorse", include_bytes!("../../../../third_party/tzdb/America/Whitehorse")),
+    ("America/Winnipeg", include_bytes!("../../../../third_party/tzdb/America/Winnipeg")),
+    ("America/Yakutat", include_bytes!("../../../../third_party/tzdb/America/Yakutat")),
+    ("America/Yellowknife", include_bytes!("../../../../third_party/tzdb/America/Yellowknife")),
+    ("Antarctica/Casey", include_bytes!("../../../../third_party/tzdb/Antarctica/Casey")),
+    ("Antarctica/Davis", include_bytes!("../../../../third_party/tzdb/Antarctica/Davis")),
+    (
+        "Antarctica/DumontDUrville",
+        include_bytes!("../../../../third_party/tzdb/Antarctica/DumontDUrville"),
+    ),
+    (
+        "Antarctica/Macquarie",
+        include_bytes!("../../../../third_party/tzdb/Antarctica/Macquarie"),
+    ),
+    ("Antarctica/Mawson", include_bytes!("../../../../third_party/tzdb/Antarctica/Mawson")),
+    ("Antarctica/McMurdo", include_bytes!("../../../../third_party/tzdb/Antarctica/McMurdo")),
+    ("Antarctica/Palmer", include_bytes!("../../../../third_party/tzdb/Antarctica/Palmer")),
+    ("Antarctica/Rothera", include_bytes!("../../../../third_party/tzdb/Antarctica/Rothera")),
+    ("Antarctica/Syowa", include_bytes!("../../../../third_party/tzdb/Antarctica/Syowa")),
+    ("Antarctica/Troll", include_bytes!("../../../../third_party/tzdb/Antarctica/Troll")),
+    ("Antarctica/Vostok", include_bytes!("../../../../third_party/tzdb/Antarctica/Vostok")),
+    ("Arctic/Longyearbyen", include_bytes!("../../../../third_party/tzdb/Arctic/Longyearbyen")),
+    ("Asia/Aden", include_bytes!("../../../../third_party/tzdb/Asia/Aden")),
+    ("Asia/Almaty", include_bytes!("../../../../third_party/tzdb/Asia/Almaty")),
+    ("Asia/Amman", include_bytes!("../../../../third_party/tzdb/Asia/Amman")),
+    ("Asia/Anadyr", include_bytes!("../../../../third_party/tzdb/Asia/Anadyr")),
+    ("Asia/Aqtau", include_bytes!("../../../../third_party/tzdb/Asia/Aqtau")),
+    ("Asia/Aqtobe", include_bytes!("../../../../third_party/tzdb/Asia/Aqtobe")),
+    ("Asia/Ashgabat", include_bytes!("../../../../third_party/tzdb/Asia/Ashgabat")),
+    ("Asia/Atyrau", include_bytes!("../../../../third_party/tzdb/Asia/Atyrau")),
+    ("Asia/Baghdad", include_bytes!("../../../../third_party/tzdb/Asia/Baghdad")),
+    ("Asia/Bahrain", include_bytes!("../../../../third_party/tzdb/Asia/Bahrain")),
+    ("Asia/Baku", include_bytes!("../../../../third_party/tzdb/Asia/Baku")),
+    ("Asia/Bangkok", include_bytes!("../../../../third_party/tzdb/Asia/Bangkok")),
+    ("Asia/Barnaul", include_bytes!("../../../../third_party/tzdb/Asia/Barnaul")),
+    ("Asia/Beirut", include_bytes!("../../../../third_party/tzdb/Asia/Beirut")),
+    ("Asia/Bishkek", include_bytes!("../../../../third_party/tzdb/Asia/Bishkek")),
+    ("Asia/Brunei", include_bytes!("../../../../third_party/tzdb/Asia/Brunei")),
+    ("Asia/Chita", include_bytes!("../../../../third_party/tzdb/Asia/Chita")),
+    ("Asia/Chongqing", include_bytes!("../../../../third_party/tzdb/Asia/Chongqing")),
+    ("Asia/Colombo", include_bytes!("../../../../third_party/tzdb/Asia/Colombo")),
+    ("Asia/Damascus", include_bytes!("../../../../third_party/tzdb/Asia/Damascus")),
+    ("Asia/Dhaka", include_bytes!("../../../../third_party/tzdb/Asia/Dhaka")),
+    ("Asia/Dili", include_bytes!("../../../../third_party/tzdb/Asia/Dili")),
+    ("Asia/Dubai", include_bytes!("../../../../third_party/tzdb/Asia/Dubai")),
+    ("Asia/Dushanbe", include_bytes!("../../../../third_party/tzdb/Asia/Dushanbe")),
+    ("Asia/Famagusta", include_bytes!("../../../../third_party/tzdb/Asia/Famagusta")),
+    ("Asia/Gaza", include_bytes!("../../../../third_party/tzdb/Asia/Gaza")),
+    ("Asia/Harbin", include_bytes!("../../../../third_party/tzdb/Asia/Harbin")),
+    ("Asia/Hebron", include_bytes!("../../../../third_party/tzdb/Asia/Hebron")),
+    ("Asia/Ho_Chi_Minh", include_bytes!("../../../../third_party/tzdb/Asia/Ho_Chi_Minh")),
+    ("Asia/Hong_Kong", include_bytes!("../../../../third_party/tzdb/Asia/Hong_Kong")),
+    ("Asia/Hovd", include_bytes!("../../../../third_party/tzdb/Asia/Hovd")),
+    ("Asia/Irkutsk", include_bytes!("../../../../third_party/tzdb/Asia/Irkutsk")),
+    ("Asia/Istanbul", include_bytes!("../../../../third_party/tzdb/Asia/Istanbul")),
+    ("Asia/Jakarta", include_bytes!("../../../../third_party/tzdb/Asia/Jakarta")),
+    ("Asia/Jayapura", include_bytes!("../../../../third_party/tzdb/Asia/Jayapura")),
+    ("Asia/Jerusalem", include_bytes!("../../../../third_party/tzdb/Asia/Jerusalem")),
+    ("Asia/Kabul", include_bytes!("../../../../third_party/tzdb/Asia/Kabul")),
+    ("Asia/Kamchatka", include_bytes!("../../../../third_party/tzdb/Asia/Kamchatka")),
+    ("Asia/Karachi", include_bytes!("../../../../third_party/tzdb/Asia/Karachi")),
+    ("Asia/Kashgar", include_bytes!("../../../../third_party/tzdb/Asia/Kashgar")),
+    ("Asia/Kathmandu", include_bytes!("../../../../third_party/tzdb/Asia/Kathmandu")),
+    ("Asia/Khandyga", include_bytes!("../../../../third_party/tzdb/Asia/Khandyga")),
+    ("Asia/Kolkata", include_bytes!("../../../../third_party/tzdb/Asia/Kolkata")),
+    ("Asia/Krasnoyarsk", include_bytes!("../../../../third_party/tzdb/Asia/Krasnoyarsk")),
+    ("Asia/Kuala_Lumpur", include_bytes!("../../../../third_party/tzdb/Asia/Kuala_Lumpur")),
+    ("Asia/Kuching", include_bytes!("../../../../third_party/tzdb/Asia/Kuching")),
+    ("Asia/Kuwait", include_bytes!("../../../../third_party/tzdb/Asia/Kuwait")),
+    ("Asia/Macau", include_bytes!("../../../../third_party/tzdb/Asia/Macau")),
+    ("Asia/Magadan", include_bytes!("../../../../third_party/tzdb/Asia/Magadan")),
+    ("Asia/Makassar", include_bytes!("../../../../third_party/tzdb/Asia/Makassar")),
+    ("Asia/Manila", include_bytes!("../../../../third_party/tzdb/Asia/Manila")),
+    ("Asia/Muscat", include_bytes!("../../../../third_party/tzdb/Asia/Muscat")),
+    ("Asia/Nicosia", include_bytes!("../../../../third_party/tzdb/Asia/Nicosia")),
+    ("Asia/Novokuznetsk", include_bytes!("../../../../third_party/tzdb/Asia/Novokuznetsk")),
+    ("Asia/Novosibirsk", include_bytes!("../../../../third_party/tzdb/Asia/Novosibirsk")),
+    ("Asia/Omsk", include_bytes!("../../../../third_party/tzdb/Asia/Omsk")),
+    ("Asia/Oral", include_bytes!("../../../../third_party/tzdb/Asia/Oral")),
+    ("Asia/Phnom_Penh", include_bytes!("../../../../third_party/tzdb/Asia/Phnom_Penh")),
+    ("Asia/Pontianak", include_bytes!("../../../../third_party/tzdb/Asia/Pontianak")),
+    ("Asia/Pyongyang", include_bytes!("../../../../third_party/tzdb/Asia/Pyongyang")),
+    ("Asia/Qatar", include_bytes!("../../../../third_party/tzdb/Asia/Qatar")),
+    ("Asia/Qostanay", include_bytes!("../../../../third_party/tzdb/Asia/Qostanay")),
+    ("Asia/Qyzylorda", include_bytes!("../../../../third_party/tzdb/Asia/Qyzylorda")),
+    ("Asia/Riyadh", include_bytes!("../../../../third_party/tzdb/Asia/Riyadh")),
+    ("Asia/Sakhalin", include_bytes!("../../../../third_party/tzdb/Asia/Sakhalin")),
+    ("Asia/Samarkand", include_bytes!("../../../../third_party/tzdb/Asia/Samarkand")),
+    ("Asia/Seoul", include_bytes!("../../../../third_party/tzdb/Asia/Seoul")),
+    ("Asia/Shanghai", include_bytes!("../../../../third_party/tzdb/Asia/Shanghai")),
+    ("Asia/Singapore", include_bytes!("../../../../third_party/tzdb/Asia/Singapore")),
+    ("Asia/Srednekolymsk", include_bytes!("../../../../third_party/tzdb/Asia/Srednekolymsk")),
+    ("Asia/Taipei", include_bytes!("../../../../third_party/tzdb/Asia/Taipei")),
+    ("Asia/Tashkent", include_bytes!("../../../../third_party/tzdb/Asia/Tashkent")),
+    ("Asia/Tbilisi", include_bytes!("../../../../third_party/tzdb/Asia/Tbilisi")),
+    ("Asia/Tehran", include_bytes!("../../../../third_party/tzdb/Asia/Tehran")),
+    ("Asia/Tel_Aviv", include_bytes!("../../../../third_party/tzdb/Asia/Tel_Aviv")),
+    ("Asia/Thimphu", include_bytes!("../../../../third_party/tzdb/Asia/Thimphu")),
+    ("Asia/Tokyo", include_bytes!("../../../../third_party/tzdb/Asia/Tokyo")),
+    ("Asia/Tomsk", include_bytes!("../../../../third_party/tzdb/Asia/Tomsk")),
+    ("Asia/Ulaanbaatar", include_bytes!("../../../../third_party/tzdb/Asia/Ulaanbaatar")),
+    ("Asia/Urumqi", include_bytes!("../../../../third_party/tzdb/Asia/Urumqi")),
+    ("Asia/Ust-Nera", include_bytes!("../../../../third_party/tzdb/Asia/Ust-Nera")),
+    ("Asia/Vientiane", include_bytes!("../../../../third_party/tzdb/Asia/Vientiane")),
+    ("Asia/Vladivostok", include_bytes!("../../../../third_party/tzdb/Asia/Vladivostok")),
+    ("Asia/Yakutsk", include_bytes!("../../../../third_party/tzdb/Asia/Yakutsk")),
+    ("Asia/Yangon", include_bytes!("../../../../third_party/tzdb/Asia/Yangon")),
+    ("Asia/Yekaterinburg", include_bytes!("../../../../third_party/tzdb/Asia/Yekaterinburg")),
+    ("Asia/Yerevan", include_bytes!("../../../../third_party/tzdb/Asia/Yerevan")),
+    ("Atlantic/Azores", include_bytes!("../../../../third_party/tzdb/Atlantic/Azores")),
+    ("Atlantic/Bermuda", include_bytes!("../../../../third_party/tzdb/Atlantic/Bermuda")),
+    ("Atlantic/Canary", include_bytes!("../../../../third_party/tzdb/Atlantic/Canary")),
+    ("Atlantic/Cape_Verde", include_bytes!("../../../../third_party/tzdb/Atlantic/Cape_Verde")),
+    ("Atlantic/Faroe", include_bytes!("../../../../third_party/tzdb/Atlantic/Faroe")),
+    ("Atlantic/Jan_Mayen", include_bytes!("../../../../third_party/tzdb/Atlantic/Jan_Mayen")),
+    ("Atlantic/Madeira", include_bytes!("../../../../third_party/tzdb/Atlantic/Madeira")),
+    ("Atlantic/Reykjavik", include_bytes!("../../../../third_party/tzdb/Atlantic/Reykjavik")),
+    (
+        "Atlantic/South_Georgia",
+        include_bytes!("../../../../third_party/tzdb/Atlantic/South_Georgia"),
+    ),
+    ("Atlantic/St_Helena", include_bytes!("../../../../third_party/tzdb/Atlantic/St_Helena")),
+    ("Atlantic/Stanley", include_bytes!("../../../../third_party/tzdb/Atlantic/Stanley")),
+    ("Australia/Adelaide", include_bytes!("../../../../third_party/tzdb/Australia/Adelaide")),
+    ("Australia/Brisbane", include_bytes!("../../../../third_party/tzdb/Australia/Brisbane")),
+    (
+        "Australia/Broken_Hill",
+        include_bytes!("../../../../third_party/tzdb/Australia/Broken_Hill"),
+    ),
+    ("Australia/Canberra", include_bytes!("../../../../third_party/tzdb/Australia/Canberra")),
+    ("Australia/Currie", include_bytes!("../../../../third_party/tzdb/Australia/Currie")),
+    ("Australia/Darwin", include_bytes!("../../../../third_party/tzdb/Australia/Darwin")),
+    ("Australia/Eucla", include_bytes!("../../../../third_party/tzdb/Australia/Eucla")),
+    ("Australia/Hobart", include_bytes!("../../../../third_party/tzdb/Australia/Hobart")),
+    ("Australia/Lindeman", include_bytes!("../../../../third_party/tzdb/Australia/Lindeman")),
+    ("Australia/Lord_Howe", include_bytes!("../../../../third_party/tzdb/Australia/Lord_Howe")),
+    ("Australia/Melbourne", include_bytes!("../../../../third_party/tzdb/Australia/Melbourne")),
+    ("Australia/Perth", include_bytes!("../../../../third_party/tzdb/Australia/Perth")),
+    ("Australia/Sydney", include_bytes!("../../../../third_party/tzdb/Australia/Sydney")),
+    (
+        "Australia/Yancowinna",
+        include_bytes!("../../../../third_party/tzdb/Australia/Yancowinna"),
+    ),
+    ("Etc/GMT", include_bytes!("../../../../third_party/tzdb/Etc/GMT")),
+    ("Etc/GMT+0", include_bytes!("../../../../third_party/tzdb/Etc/GMT+0")),
+    ("Etc/GMT+1", include_bytes!("../../../../third_party/tzdb/Etc/GMT+1")),
+    ("Etc/GMT+10", include_bytes!("../../../../third_party/tzdb/Etc/GMT+10")),
+    ("Etc/GMT+11", include_bytes!("../../../../third_party/tzdb/Etc/GMT+11")),
+    ("Etc/GMT+12", include_bytes!("../../../../third_party/tzdb/Etc/GMT+12")),
+    ("Etc/GMT+2", include_bytes!("../../../../third_party/tzdb/Etc/GMT+2")),
+    ("Etc/GMT+3", include_bytes!("../../../../third_party/tzdb/Etc/GMT+3")),
+    ("Etc/GMT+4", include_bytes!("../../../../third_party/tzdb/Etc/GMT+4")),
+    ("Etc/GMT+5", include_bytes!("../../../../third_party/tzdb/Etc/GMT+5")),
+    ("Etc/GMT+6", include_bytes!("../../../../third_party/tzdb/Etc/GMT+6")),
+    ("Etc/GMT+7", include_bytes!("../../../../third_party/tzdb/Etc/GMT+7")),
+    ("Etc/GMT+8", include_bytes!("../../../../third_party/tzdb/Etc/GMT+8")),
+    ("Etc/GMT+9", include_bytes!("../../../../third_party/tzdb/Etc/GMT+9")),
+    ("Etc/GMT-0", include_bytes!("../../../../third_party/tzdb/Etc/GMT-0")),
+    ("Etc/GMT-1", include_bytes!("../../../../third_party/tzdb/Etc/GMT-1")),
+    ("Etc/GMT-10", include_bytes!("../../../../third_party/tzdb/Etc/GMT-10")),
+    ("Etc/GMT-11", include_bytes!("../../../../third_party/tzdb/Etc/GMT-11")),
+    ("Etc/GMT-12", include_bytes!("../../../../third_party/tzdb/Etc/GMT-12")),
+    ("Etc/GMT-13", include_bytes!("../../../../third_party/tzdb/Etc/GMT-13")),
+    ("Etc/GMT-14", include_bytes!("../../../../third_party/tzdb/Etc/GMT-14")),
+    ("Etc/GMT-2", include_bytes!("../../../../third_party/tzdb/Etc/GMT-2")),
+    ("Etc/GMT-3", include_bytes!("../../../../third_party/tzdb/Etc/GMT-3")),
+    ("Etc/GMT-4", include_bytes!("../../../../third_party/tzdb/Etc/GMT-4")),
+    ("Etc/GMT-5", include_bytes!("../../../../third_party/tzdb/Etc/GMT-5")),
+    ("Etc/GMT-6", include_bytes!("../../../../third_party/tzdb/Etc/GMT-6")),
+    ("Etc/GMT-7", include_bytes!("../../../../third_party/tzdb/Etc/GMT-7")),
+    ("Etc/GMT-8", include_bytes!("../../../../third_party/tzdb/Etc/GMT-8")),
+    ("Etc/GMT-9", include_bytes!("../../../../third_party/tzdb/Etc/GMT-9")),
+    ("Etc/GMT0", include_bytes!("../../../../third_party/tzdb/Etc/GMT0")),
+    ("Etc/Greenwich", include_bytes!("../../../../third_party/tzdb/Etc/Greenwich")),
+    ("Etc/UCT", include_bytes!("../../../../third_party/tzdb/Etc/UCT")),
+    ("Etc/UTC", include_bytes!("../../../../third_party/tzdb/Etc/UTC")),
+    ("Etc/Universal", include_bytes!("../../../../third_party/tzdb/Etc/Universal")),
+    ("Etc/Zulu", include_bytes!("../../../../third_party/tzdb/Etc/Zulu")),
+    ("Europe/Amsterdam", include_bytes!("../../../../third_party/tzdb/Europe/Amsterdam")),
+    ("Europe/Andorra", include_bytes!("../../../../third_party/tzdb/Europe/Andorra")),
+    ("Europe/Astrakhan", include_bytes!("../../../../third_party/tzdb/Europe/Astrakhan")),
+    ("Europe/Athens", include_bytes!("../../../../third_party/tzdb/Europe/Athens")),
+    ("Europe/Belfast", include_bytes!("../../../../third_party/tzdb/Europe/Belfast")),
+    ("Europe/Belgrade", include_bytes!("../../../../third_party/tzdb/Europe/Belgrade")),
+    ("Europe/Berlin", include_bytes!("../../../../third_party/tzdb/Europe/Berlin")),
+    ("Europe/Bratislava", include_bytes!("../../../../third_party/tzdb/Europe/Bratislava")),
+    ("Europe/Brussels", include_bytes!("../../../../third_party/tzdb/Europe/Brussels")),
+    ("Europe/Bucharest", include_bytes!("../../../../third_party/tzdb/Europe/Bucharest")),
+    ("Europe/Budapest", include_bytes!("../../../../third_party/tzdb/Europe/Budapest")),
+    ("Europe/Busingen", include_bytes!("../../../../third_party/tzdb/Europe/Busingen")),
+    ("Europe/Chisinau", include_bytes!("../../../../third_party/tzdb/Europe/Chisinau")),
+    ("Europe/Copenhagen", include_bytes!("../../../../third_party/tzdb/Europe/Copenhagen")),
+    ("Europe/Dublin", include_bytes!("../../../../third_party/tzdb/Europe/Dublin")),
+    ("Europe/Gibraltar", include_bytes!("../../../../third_party/tzdb/Europe/Gibraltar")),
+    ("Europe/Guernsey", include_bytes!("../../../../third_party/tzdb/Europe/Guernsey")),
+    ("Europe/Helsinki", include_bytes!("../../../../third_party/tzdb/Europe/Helsinki")),
+    ("Europe/Isle_of_Man", include_bytes!("../../../../third_party/tzdb/Europe/Isle_of_Man")),
+    ("Europe/Istanbul", include_bytes!("../../../../third_party/tzdb/Europe/Istanbul")),
+    ("Europe/Jersey", include_bytes!("../../../../third_party/tzdb/Europe/Jersey")),
+    ("Europe/Kaliningrad", include_bytes!("../../../../third_party/tzdb/Europe/Kaliningrad")),
+    ("Europe/Kirov", include_bytes!("../../../../third_party/tzdb/Europe/Kirov")),
+    ("Europe/Kyiv", include_bytes!("../../../../third_party/tzdb/Europe/Kyiv")),
+    ("Europe/Lisbon", include_bytes!("../../../../third_party/tzdb/Europe/Lisbon")),
+    ("Europe/Ljubljana", include_bytes!("../../../../third_party/tzdb/Europe/Ljubljana")),
+    ("Europe/London", include_bytes!("../../../../third_party/tzdb/Europe/London")),
+    ("Europe/Luxembourg", include_bytes!("../../../../third_party/tzdb/Europe/Luxembourg")),
+    ("Europe/Madrid", include_bytes!("../../../../third_party/tzdb/Europe/Madrid")),
+    ("Europe/Malta", include_bytes!("../../../../third_party/tzdb/Europe/Malta")),
+    ("Europe/Mariehamn", include_bytes!("../../../../third_party/tzdb/Europe/Mariehamn")),
+    ("Europe/Minsk", include_bytes!("../../../../third_party/tzdb/Europe/Minsk")),
+    ("Europe/Monaco", include_bytes!("../../../../third_party/tzdb/Europe/Monaco")),
+    ("Europe/Moscow", include_bytes!("../../../../third_party/tzdb/Europe/Moscow")),
+    ("Europe/Nicosia", include_bytes!("../../../../third_party/tzdb/Europe/Nicosia")),
+    ("Europe/Oslo", include_bytes!("../../../../third_party/tzdb/Europe/Oslo")),
+    ("Europe/Paris", include_bytes!("../../../../third_party/tzdb/Europe/Paris")),
+    ("Europe/Podgorica", include_bytes!("../../../../third_party/tzdb/Europe/Podgorica")),
+    ("Europe/Prague", include_bytes!("../../../../third_party/tzdb/Europe/Prague")),
+    ("Europe/Riga", include_bytes!("../../../../third_party/tzdb/Europe/Riga")),
+    ("Europe/Rome", include_bytes!("../../../../third_party/tzdb/Europe/Rome")),
+    ("Europe/Samara", include_bytes!("../../../../third_party/tzdb/Europe/Samara")),
+    ("Europe/San_Marino", include_bytes!("../../../../third_party/tzdb/Europe/San_Marino")),
+    ("Europe/Sarajevo", include_bytes!("../../../../third_party/tzdb/Europe/Sarajevo")),
+    ("Europe/Saratov", include_bytes!("../../../../third_party/tzdb/Europe/Saratov")),
+    ("Europe/Simferopol", include_bytes!("../../../../third_party/tzdb/Europe/Simferopol")),
+    ("Europe/Skopje", include_bytes!("../../../../third_party/tzdb/Europe/Skopje")),
+    ("Europe/Sofia", include_bytes!("../../../../third_party/tzdb/Europe/Sofia")),
+    ("Europe/Stockholm", include_bytes!("../../../../third_party/tzdb/Europe/Stockholm")),
+    ("Europe/Tallinn", include_bytes!("../../../../third_party/tzdb/Europe/Tallinn")),
+    ("Europe/Tirane", include_bytes!("../../../../third_party/tzdb/Europe/Tirane")),
+    ("Europe/Tiraspol", include_bytes!("../../../../third_party/tzdb/Europe/Tiraspol")),
+    ("Europe/Ulyanovsk", include_bytes!("../../../../third_party/tzdb/Europe/Ulyanovsk")),
+    ("Europe/Vaduz", include_bytes!("../../../../third_party/tzdb/Europe/Vaduz")),
+    ("Europe/Vatican", include_bytes!("../../../../third_party/tzdb/Europe/Vatican")),
+    ("Europe/Vienna", include_bytes!("../../../../third_party/tzdb/Europe/Vienna")),
+    ("Europe/Vilnius", include_bytes!("../../../../third_party/tzdb/Europe/Vilnius")),
+    ("Europe/Volgograd", include_bytes!("../../../../third_party/tzdb/Europe/Volgograd")),
+    ("Europe/Warsaw", include_bytes!("../../../../third_party/tzdb/Europe/Warsaw")),
+    ("Europe/Zagreb", include_bytes!("../../../../third_party/tzdb/Europe/Zagreb")),
+    ("Europe/Zurich", include_bytes!("../../../../third_party/tzdb/Europe/Zurich")),
+    ("Factory", include_bytes!("../../../../third_party/tzdb/Factory")),
+    ("GMT", include_bytes!("../../../../third_party/tzdb/GMT")),
+    ("Indian/Antananarivo", include_bytes!("../../../../third_party/tzdb/Indian/Antananarivo")),
+    ("Indian/Chagos", include_bytes!("../../../../third_party/tzdb/Indian/Chagos")),
+    ("Indian/Christmas", include_bytes!("../../../../third_party/tzdb/Indian/Christmas")),
+    ("Indian/Cocos", include_bytes!("../../../../third_party/tzdb/Indian/Cocos")),
+    ("Indian/Comoro", include_bytes!("../../../../third_party/tzdb/Indian/Comoro")),
+    ("Indian/Kerguelen", include_bytes!("../../../../third_party/tzdb/Indian/Kerguelen")),
+    ("Indian/Mahe", include_bytes!("../../../../third_party/tzdb/Indian/Mahe")),
+    ("Indian/Maldives", include_bytes!("../../../../third_party/tzdb/Indian/Maldives")),
+    ("Indian/Mauritius", include_bytes!("../../../../third_party/tzdb/Indian/Mauritius")),
+    ("Indian/Mayotte", include_bytes!("../../../../third_party/tzdb/Indian/Mayotte")),
+    ("Indian/Reunion", include_bytes!("../../../../third_party/tzdb/Indian/Reunion")),
+    ("Pacific/Apia", include_bytes!("../../../../third_party/tzdb/Pacific/Apia")),
+    ("Pacific/Auckland", include_bytes!("../../../../third_party/tzdb/Pacific/Auckland")),
+    (
+        "Pacific/Bougainville",
+        include_bytes!("../../../../third_party/tzdb/Pacific/Bougainville"),
+    ),
+    ("Pacific/Chatham", include_bytes!("../../../../third_party/tzdb/Pacific/Chatham")),
+    ("Pacific/Chuuk", include_bytes!("../../../../third_party/tzdb/Pacific/Chuuk")),
+    ("Pacific/Easter", include_bytes!("../../../../third_party/tzdb/Pacific/Easter")),
+    ("Pacific/Efate", include_bytes!("../../../../third_party/tzdb/Pacific/Efate")),
+    ("Pacific/Fakaofo", include_bytes!("../../../../third_party/tzdb/Pacific/Fakaofo")),
+    ("Pacific/Fiji", include_bytes!("../../../../third_party/tzdb/Pacific/Fiji")),
+    ("Pacific/Funafuti", include_bytes!("../../../../third_party/tzdb/Pacific/Funafuti")),
+    ("Pacific/Galapagos", include_bytes!("../../../../third_party/tzdb/Pacific/Galapagos")),
+    ("Pacific/Gambier", include_bytes!("../../../../third_party/tzdb/Pacific/Gambier")),
+    ("Pacific/Guadalcanal", include_bytes!("../../../../third_party/tzdb/Pacific/Guadalcanal")),
+    ("Pacific/Guam", include_bytes!("../../../../third_party/tzdb/Pacific/Guam")),
+    ("Pacific/Honolulu", include_bytes!("../../../../third_party/tzdb/Pacific/Honolulu")),
+    ("Pacific/Johnston", include_bytes!("../../../../third_party/tzdb/Pacific/Johnston")),
+    ("Pacific/Kanton", include_bytes!("../../../../third_party/tzdb/Pacific/Kanton")),
+    ("Pacific/Kiritimati", include_bytes!("../../../../third_party/tzdb/Pacific/Kiritimati")),
+    ("Pacific/Kosrae", include_bytes!("../../../../third_party/tzdb/Pacific/Kosrae")),
+    ("Pacific/Kwajalein", include_bytes!("../../../../third_party/tzdb/Pacific/Kwajalein")),
+    ("Pacific/Majuro", include_bytes!("../../../../third_party/tzdb/Pacific/Majuro")),
+    ("Pacific/Marquesas", include_bytes!("../../../../third_party/tzdb/Pacific/Marquesas")),
+    ("Pacific/Midway", include_bytes!("../../../../third_party/tzdb/Pacific/Midway")),
+    ("Pacific/Nauru", include_bytes!("../../../../third_party/tzdb/Pacific/Nauru")),
+    ("Pacific/Niue", include_bytes!("../../../../third_party/tzdb/Pacific/Niue")),
+    ("Pacific/Norfolk", include_bytes!("../../../../third_party/tzdb/Pacific/Norfolk")),
+    ("Pacific/Noumea", include_bytes!("../../../../third_party/tzdb/Pacific/Noumea")),
+    ("Pacific/Pago_Pago", include_bytes!("../../../../third_party/tzdb/Pacific/Pago_Pago")),
+    ("Pacific/Palau", include_bytes!("../../../../third_party/tzdb/Pacific/Palau")),
+    ("Pacific/Pitcairn", include_bytes!("../../../../third_party/tzdb/Pacific/Pitcairn")),
+    ("Pacific/Pohnpei", include_bytes!("../../../../third_party/tzdb/Pacific/Pohnpei")),
+    (
+        "Pacific/Port_Moresby",
+        include_bytes!("../../../../third_party/tzdb/Pacific/Port_Moresby"),
+    ),
+    ("Pacific/Rarotonga", include_bytes!("../../../../third_party/tzdb/Pacific/Rarotonga")),
+    ("Pacific/Saipan", include_bytes!("../../../../third_party/tzdb/Pacific/Saipan")),
+    ("Pacific/Samoa", include_bytes!("../../../../third_party/tzdb/Pacific/Samoa")),
+    ("Pacific/Tahiti", include_bytes!("../../../../third_party/tzdb/Pacific/Tahiti")),
+    ("Pacific/Tarawa", include_bytes!("../../../../third_party/tzdb/Pacific/Tarawa")),
+    ("Pacific/Tongatapu", include_bytes!("../../../../third_party/tzdb/Pacific/Tongatapu")),
+    ("Pacific/Wake", include_bytes!("../../../../third_party/tzdb/Pacific/Wake")),
+    ("Pacific/Wallis", include_bytes!("../../../../third_party/tzdb/Pacific/Wallis")),
+    ("Pacific/Yap", include_bytes!("../../../../third_party/tzdb/Pacific/Yap")),
+    ("UTC", include_bytes!("../../../../third_party/tzdb/UTC")),
+    ("posixrules", include_bytes!("../../../../third_party/tzdb/posixrules")),
+];
+
+const LEGACY_ALIASES: &[(&str, &str)] = &[
+    ("Africa/Accra", "Africa/Abidjan"),
+    ("Africa/Addis_Ababa", "Africa/Nairobi"),
+    ("Africa/Asmara", "Africa/Nairobi"),
+    ("Africa/Asmera", "Africa/Nairobi"),
+    ("Africa/Bamako", "Africa/Abidjan"),
+    ("Africa/Bangui", "Africa/Lagos"),
+    ("Africa/Banjul", "Africa/Abidjan"),
+    ("Africa/Blantyre", "Africa/Maputo"),
+    ("Africa/Brazzaville", "Africa/Lagos"),
+    ("Africa/Bujumbura", "Africa/Maputo"),
+    ("Africa/Conakry", "Africa/Abidjan"),
+    ("Africa/Dakar", "Africa/Abidjan"),
+    ("Africa/Dar_es_Salaam", "Africa/Nairobi"),
+    ("Africa/Djibouti", "Africa/Nairobi"),
+    ("Africa/Douala", "Africa/Lagos"),
+    ("Africa/Freetown", "Africa/Abidjan"),
+    ("Africa/Gaborone", "Africa/Maputo"),
+    ("Africa/Harare", "Africa/Maputo"),
+    ("Africa/Kampala", "Africa/Nairobi"),
+    ("Africa/Kigali", "Africa/Maputo"),
+    ("Africa/Kinshasa", "Africa/Lagos"),
+    ("Africa/Libreville", "Africa/Lagos"),
+    ("Africa/Lome", "Africa/Abidjan"),
+    ("Africa/Luanda", "Africa/Lagos"),
+    ("Africa/Lubumbashi", "Africa/Maputo"),
+    ("Africa/Lusaka", "Africa/Maputo"),
+    ("Africa/Malabo", "Africa/Lagos"),
+    ("Africa/Maseru", "Africa/Johannesburg"),
+    ("Africa/Mbabane", "Africa/Johannesburg"),
+    ("Africa/Mogadishu", "Africa/Nairobi"),
+    ("Africa/Niamey", "Africa/Lagos"),
+    ("Africa/Nouakchott", "Africa/Abidjan"),
+    ("Africa/Ouagadougou", "Africa/Abidjan"),
+    ("Africa/Porto-Novo", "Africa/Lagos"),
+    ("Africa/Timbuktu", "Africa/Abidjan"),
+    ("America/Anguilla", "America/Puerto_Rico"),
+    ("America/Antigua", "America/Puerto_Rico"),
+    ("America/Argentina/ComodRivadavia", "America/Argentina/Catamarca"),
+    ("America/Aruba", "America/Puerto_Rico"),
+    ("America/Atikokan", "America/Panama"),
+    ("America/Atka", "America/Adak"),
+    ("America/Blanc-Sablon", "America/Puerto_Rico"),
+    ("America/Buenos_Aires", "America/Argentina/Buenos_Aires"),
+    ("America/Catamarca", "America/Argentina/Catamarca"),
+    ("America/Cayman", "America/Panama"),
+    ("America/Coral_Harbour", "America/Panama"),
+    ("America/Cordoba", "America/Argentina/Cordoba"),
+    ("America/Creston", "America/Phoenix"),
+    ("America/Curacao", "America/Puerto_Rico"),
+    ("America/Dominica", "America/Puerto_Rico"),
+    ("America/Ensenada", "America/Tijuana"),
+    ("America/Fort_Wayne", "America/Indiana/Indianapolis"),
+    ("America/Godthab", "America/Nuuk"),
+    ("America/Grenada", "America/Puerto_Rico"),
+    ("America/Guadeloupe", "America/Puerto_Rico"),
+    ("America/Indianapolis", "America/Indiana/Indianapolis"),
+    ("America/Jujuy", "America/Argentina/Jujuy"),
+    ("America/Knox_IN", "America/Indiana/Knox"),
+    ("America/Kralendijk", "America/Puerto_Rico"),
+    ("America/Louisville", "America/Kentucky/Louisville"),
+    ("America/Lower_Princes", "America/Puerto_Rico"),
+    ("America/Marigot", "America/Puerto_Rico"),
+    ("America/Mendoza", "America/Argentina/Mendoza"),
+    ("America/Montreal", "America/Toronto"),
+    ("America/Montserrat", "America/Puerto_Rico"),
+    ("America/Nassau", "America/Toronto"),
+    ("America/Nipigon", "America/Toronto"),
+    ("America/Pangnirtung", "America/Iqaluit"),
+    ("America/Port_of_Spain", "America/Puerto_Rico"),
+    ("America/Porto_Acre", "America/Rio_Branco"),
+    ("America/Rainy_River", "America/Winnipeg"),
+    ("America/Rosario", "America/Argentina/Cordoba"),
+    ("America/Santa_Isabel", "America/Tijuana"),
+    ("America/Shiprock", "America/Denver"),
+    ("America/St_Barthelemy", "America/Puerto_Rico"),
+    ("America/St_Kitts", "America/Puerto_Rico"),
+    ("America/St_Lucia", "America/Puerto_Rico"),
+    ("America/St_Thomas", "America/Puerto_Rico"),
+    ("America/St_Vincent", "America/Puerto_Rico"),
+    ("America/Thunder_Bay", "America/Toronto"),
+    ("America/Tortola", "America/Puerto_Rico"),
+    ("America/Virgin", "America/Puerto_Rico"),
+    ("America/Yellowknife", "America/Edmonton"),
+    ("Antarctica/DumontDUrville", "Pacific/Port_Moresby"),
+    ("Antarctica/McMurdo", "Pacific/Auckland"),
+    ("Antarctica/South_Pole", "Pacific/Auckland"),
+    ("Antarctica/Syowa", "Asia/Riyadh"),
+    ("Arctic/Longyearbyen", "Europe/Berlin"),
+    ("Asia/Aden", "Asia/Riyadh"),
+    ("Asia/Ashkhabad", "Asia/Ashgabat"),
+    ("Asia/Bahrain", "Asia/Qatar"),
+    ("Asia/Brunei", "Asia/Kuching"),
+    ("Asia/Calcutta", "Asia/Kolkata"),
+    ("Asia/Choibalsan", "Asia/Ulaanbaatar"),
+    ("Asia/Chongqing", "Asia/Shanghai"),
+    ("Asia/Chungking", "Asia/Shanghai"),
+    ("Asia/Dacca", "Asia/Dhaka"),
+    ("Asia/Harbin", "Asia/Shanghai"),
+    ("Asia/Istanbul", "Europe/Istanbul"),
+    ("Asia/Kashgar", "Asia/Urumqi"),
+    ("Asia/Katmandu", "Asia/Kathmandu"),
+    ("Asia/Kuala_Lumpur", "Asia/Singapore"),
+    ("Asia/Kuwait", "Asia/Riyadh"),
+    ("Asia/Macao", "Asia/Macau"),
+    ("Asia/Muscat", "Asia/Dubai"),
+    ("Asia/Phnom_Penh", "Asia/Bangkok"),
+    ("Asia/Rangoon", "Asia/Yangon"),
+    ("Asia/Saigon", "Asia/Ho_Chi_Minh"),
+    ("Asia/Tel_Aviv", "Asia/Jerusalem"),
+    ("Asia/Thimbu", "Asia/Thimphu"),
+    ("Asia/Ujung_Pandang", "Asia/Makassar"),
+    ("Asia/Ulan_Bator", "Asia/Ulaanbaatar"),
+    ("Asia/Vientiane", "Asia/Bangkok"),
+    ("Atlantic/Faeroe", "Atlantic/Faroe"),
+    ("Atlantic/Jan_Mayen", "Europe/Berlin"),
+    ("Atlantic/Reykjavik", "Africa/Abidjan"),
+    ("Atlantic/St_Helena", "Africa/Abidjan"),
+    ("Australia/ACT", "Australia/Sydney"),
+    ("Australia/Canberra", "Australia/Sydney"),
+    ("Australia/Currie", "Australia/Hobart"),
+    ("Australia/LHI", "Australia/Lord_Howe"),
+    ("Australia/NSW", "Australia/Sydney"),
+    ("Australia/North", "Australia/Darwin"),
+    ("Australia/Queensland", "Australia/Brisbane"),
+    ("Australia/South", "Australia/Adelaide"),
+    ("Australia/Tasmania", "Australia/Hobart"),
+    ("Australia/Victoria", "Australia/Melbourne"),
+    ("Australia/West", "Australia/Perth"),
+    ("Australia/Yancowinna", "Australia/Broken_Hill"),
+    ("Brazil/Acre", "America/Rio_Branco"),
+    ("Brazil/DeNoronha", "America/Noronha"),
+    ("Brazil/East", "America/Sao_Paulo"),
+    ("Brazil/West", "America/Manaus"),
+    ("CET", "Europe/Brussels"),
+    ("CST6CDT", "America/Chicago"),
+    ("Canada/Atlantic", "America/Halifax"),
+    ("Canada/Central", "America/Winnipeg"),
+    ("Canada/Eastern", "America/Toronto"),
+    ("Canada/Mountain", "America/Edmonton"),
+    ("Canada/Newfoundland", "America/St_Johns"),
+    ("Canada/Pacific", "America/Vancouver"),
+    ("Canada/Saskatchewan", "America/Regina"),
+    ("Canada/Yukon", "America/Whitehorse"),
+    ("Chile/Continental", "America/Santiago"),
+    ("Chile/EasterIsland", "Pacific/Easter"),
+    ("Cuba", "America/Havana"),
+    ("EET", "Europe/Athens"),
+    ("EST", "America/Panama"),
+    ("EST5EDT", "America/New_York"),
+    ("Egypt", "Africa/Cairo"),
+    ("Eire", "Europe/Dublin"),
+    ("Etc/GMT+0", "Etc/GMT"),
+    ("Etc/GMT-0", "Etc/GMT"),
+    ("Etc/GMT0", "Etc/GMT"),
+    ("Etc/Greenwich", "Etc/GMT"),
+    ("Etc/Ignored", "Etc/UTC"),
+    ("Etc/UCT", "Etc/UTC"),
+    ("Etc/Universal", "Etc/UTC"),
+    ("Etc/Zulu", "Etc/UTC"),
+    ("Europe/Amsterdam", "Europe/Brussels"),
+    ("Europe/Belfast", "Europe/London"),
+    ("Europe/Bratislava", "Europe/Prague"),
+    ("Europe/Busingen", "Europe/Zurich"),
+    ("Europe/Copenhagen", "Europe/Berlin"),
+    ("Europe/Guernsey", "Europe/London"),
+    ("Europe/Isle_of_Man", "Europe/London"),
+    ("Europe/Jersey", "Europe/London"),
+    ("Europe/Kiev", "Europe/Kyiv"),
+    ("Europe/Ljubljana", "Europe/Belgrade"),
+    ("Europe/Luxembourg", "Europe/Brussels"),
+    ("Europe/Mariehamn", "Europe/Helsinki"),
+    ("Europe/Monaco", "Europe/Paris"),
+    ("Europe/Nicosia", "Asia/Nicosia"),
+    ("Europe/Oslo", "Europe/Berlin"),
+    ("Europe/Podgorica", "Europe/Belgrade"),
+    ("Europe/San_Marino", "Europe/Rome"),
+    ("Europe/Sarajevo", "Europe/Belgrade"),
+    ("Europe/Skopje", "Europe/Belgrade"),
+    ("Europe/Stockholm", "Europe/Berlin"),
+    ("Europe/Tiraspol", "Europe/Chisinau"),
+    ("Europe/Uzhgorod", "Europe/Kyiv"),
+    ("Europe/Vaduz", "Europe/Zurich"),
+    ("Europe/Vatican", "Europe/Rome"),
+    ("Europe/Zagreb", "Europe/Belgrade"),
+    ("Europe/Zaporozhye", "Europe/Kyiv"),
+    ("GB", "Europe/London"),
+    ("GB-Eire", "Europe/London"),
+    ("GMT+0", "Etc/GMT"),
+    ("GMT-0", "Etc/GMT"),
+    ("GMT0", "Etc/GMT"),
+    ("Greenwich", "Etc/GMT"),
+    ("HST", "Pacific/Honolulu"),
+    ("Hongkong", "Asia/Hong_Kong"),
+    ("Iceland", "Africa/Abidjan"),
+    ("Indian/Antananarivo", "Africa/Nairobi"),
+    ("Indian/Christmas", "Asia/Bangkok"),
+    ("Indian/Cocos", "Asia/Yangon"),
+    ("Indian/Comoro", "Africa/Nairobi"),
+    ("Indian/Kerguelen", "Indian/Maldives"),
+    ("Indian/Mahe", "Asia/Dubai"),
+    ("Indian/Mayotte", "Africa/Nairobi"),
+    ("Indian/Reunion", "Asia/Dubai"),
+    ("Iran", "Asia/Tehran"),
+    ("Israel", "Asia/Jerusalem"),
+    ("Jamaica", "America/Jamaica"),
+    ("Japan", "Asia/Tokyo"),
+    ("Kwajalein", "Pacific/Kwajalein"),
+    ("Libya", "Africa/Tripoli"),
+    ("MET", "Europe/Brussels"),
+    ("MST", "America/Phoenix"),
+    ("MST7MDT", "America/Denver"),
+    ("Mexico/BajaNorte", "America/Tijuana"),
+    ("Mexico/BajaSur", "America/Mazatlan"),
+    ("Mexico/General", "America/Mexico_City"),
+    ("NZ", "Pacific/Auckland"),
+    ("NZ-CHAT", "Pacific/Chatham"),
+    ("Navajo", "America/Denver"),
+    ("PRC", "Asia/Shanghai"),
+    ("PST8PDT", "America/Los_Angeles"),
+    ("Pacific/Chuuk", "Pacific/Port_Moresby"),
+    ("Pacific/Enderbury", "Pacific/Kanton"),
+    ("Pacific/Funafuti", "Pacific/Tarawa"),
+    ("Pacific/Johnston", "Pacific/Honolulu"),
+    ("Pacific/Majuro", "Pacific/Tarawa"),
+    ("Pacific/Midway", "Pacific/Pago_Pago"),
+    ("Pacific/Pohnpei", "Pacific/Guadalcanal"),
+    ("Pacific/Ponape", "Pacific/Guadalcanal"),
+    ("Pacific/Saipan", "Pacific/Guam"),
+    ("Pacific/Samoa", "Pacific/Pago_Pago"),
+    ("Pacific/Truk", "Pacific/Port_Moresby"),
+    ("Pacific/Wake", "Pacific/Tarawa"),
+    ("Pacific/Wallis", "Pacific/Tarawa"),
+    ("Pacific/Yap", "Pacific/Port_Moresby"),
+    ("Poland", "Europe/Warsaw"),
+    ("Portugal", "Europe/Lisbon"),
+    ("ROC", "Asia/Taipei"),
+    ("ROK", "Asia/Seoul"),
+    ("Singapore", "Asia/Singapore"),
+    ("Turkey", "Europe/Istanbul"),
+    ("UCT", "Etc/UTC"),
+    ("US/Alaska", "America/Anchorage"),
+    ("US/Aleutian", "America/Adak"),
+    ("US/Arizona", "America/Phoenix"),
+    ("US/Central", "America/Chicago"),
+    ("US/East-Indiana", "America/Indiana/Indianapolis"),
+    ("US/Eastern", "America/New_York"),
+    ("US/Hawaii", "Pacific/Honolulu"),
+    ("US/Indiana-Starke", "America/Indiana/Knox"),
+    ("US/Michigan", "America/Detroit"),
+    ("US/Mountain", "America/Denver"),
+    ("US/Pacific", "America/Los_Angeles"),
+    ("US/Samoa", "Pacific/Pago_Pago"),
+    ("UTC", "Etc/UTC"),
+    ("Universal", "Etc/UTC"),
+    ("W-SU", "Europe/Moscow"),
+    ("WET", "Europe/Lisbon"),
+    ("Zulu", "Etc/UTC"),
+];
+
+/// 区表：首次使用时解析全部 vendored 区文件，按名排序供二分查找。
+struct ZoneTable {
+    zones: Vec<(&'static str, TzifZone)>,
+}
+
+static ZONE_TABLE: LazyLock<ZoneTable> = LazyLock::new(|| {
+    let mut zones = ZONE_FILES
+        .iter()
+        .filter_map(|(name, bytes)| parse_tzif(bytes).ok().map(|z| (*name, z)))
+        .collect::<Vec<_>>();
+    zones.sort_by(|a, b| a.0.cmp(b.0));
+    ZoneTable { zones }
+});
+
+/// 按 IANA 区名（含 legacy 别名）查区数据。
+///
+/// # 步骤
+/// 1. 先解 legacy 别名（`LEGACY_ALIASES` 二分），未命中则原名。
+/// 2. 在区表二分查找，命中返回其 `TzifZone`。
+///
+/// # 边界与前提
+/// - 别名只解一层：别名目标是现行区名，不再二次解别名。
+///
+/// # 注意事项
+/// - 首次调用触发全量解析（毫秒级），之后为纯二分。
+#[allow(dead_code)]
+pub(crate) fn tz_zone_data(name: &str) -> Option<&'static TzifZone> {
+    let target = match LEGACY_ALIASES.binary_search_by(|a| a.0.cmp(name)) {
+        Ok(i) => LEGACY_ALIASES[i].1,
+        Err(_) => name,
+    };
+    match ZONE_TABLE.zones.binary_search_by(|z| z.0.cmp(target)) {
+        Ok(i) => Some(&ZONE_TABLE.zones[i].1),
+        Err(_) => None,
+    }
+}
+
+/// 查某区在 `epoch_s`（纪元秒）生效的 UTC 偏移（秒）。
+///
+/// # 步骤
+/// 1. 查区数据，未命中返回 `None`。
+/// 2. `partition_point` 找最后一个 `time <= epoch_s` 的 transition：
+///    无（早于首个）取 `lmt_offset`，有取该 transition 的偏移。
+///
+/// # 边界与前提
+/// - 早于首个 transition 取 LMT；晚于末个 transition 取末偏移（`last_offset`
+///   与末次 transition 一致，故 `partition_point` 已覆盖）。
+///
+/// # 注意事项
+/// - 只支持正向查找（epoch → 偏移）；local → epoch 的逆换算（ambiguous /
+///   nonexistent）由调用方迭代，不在本函数。
+#[allow(dead_code)]
+pub(crate) fn tz_offset_seconds(zone: &str, epoch_s: i64) -> Option<i64> {
+    let z = tz_zone_data(zone)?;
+    if z.transitions.is_empty() {
+        return Some(i64::from(z.last_offset));
+    }
+    let idx = z.transitions.partition_point(|t| t.0 <= epoch_s);
+    if idx == 0 {
+        Some(i64::from(z.lmt_offset))
+    } else if idx == z.transitions.len() {
+        Some(i64::from(z.last_offset))
+    } else {
+        Some(i64::from(z.transitions[idx - 1].1))
+    }
+}
+
+/// 判断 `name` 是否为可接受的 IANA 区名（含 legacy 别名）。
+#[allow(dead_code)]
+pub(crate) fn tz_is_iana_zone(name: &str) -> bool {
+    tz_zone_data(name).is_some()
+}
+
+/// 查 `epoch_s` 之后（严格大于）的下一个 transition 纪元秒。
+#[allow(dead_code)]
+pub(crate) fn tz_next_transition(zone: &str, epoch_s: i64) -> Option<i64> {
+    let z = tz_zone_data(zone)?;
+    z.transitions.iter().find(|t| t.0 > epoch_s).map(|t| t.0)
+}
+
+/// 查 `epoch_s` 之前（严格小于）的上一个 transition 纪元秒。
+#[allow(dead_code)]
+pub(crate) fn tz_prev_transition(zone: &str, epoch_s: i64) -> Option<i64> {
+    let z = tz_zone_data(zone)?;
+    z.transitions.iter().rev().find(|t| t.0 < epoch_s).map(|t| t.0)
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    /// 两个区名是否解析到同一份区数据（指针恒等）。
+    fn same_zone(a: &str, b: &str) -> bool {
+        match (tz_zone_data(a), tz_zone_data(b)) {
+            (Some(x), Some(y)) => std::ptr::eq(x as *const _, y as *const _),
+            (None, None) => true,
+            _ => false,
+        }
+    }
+
+    #[test]
+    fn new_york_1883_lmt_transition() {
+        // 1883 LMT transition（最早 transition，1970 年前，亚分钟 LMT -04:56:02）。
+        let z = tz_zone_data("America/New_York").unwrap();
+        assert_eq!(z.transitions[0].0, -2717650800);
+        assert_eq!(z.lmt_offset, -17762);
+        assert_eq!(tz_offset_seconds("America/New_York", -2717650800 - 1), Some(-17762));
+        assert_eq!(tz_offset_seconds("America/New_York", -2717650800), Some(-18000));
+    }
+
+    #[test]
+    fn monrovia_sub_minute_offset() {
+        // 亚分钟偏移 -00:44:30；1970-01-01T12:00-00:44:30 对应纪元 45870 秒。
+        assert_eq!(tz_offset_seconds("Africa/Monrovia", 45870), Some(-2670));
+        assert_eq!(tz_offset_seconds("Africa/Monrovia", 0), Some(-2670));
+    }
+
+    #[test]
+    fn niue_sub_minute_lmt_transition() {
+        // 1952-10-15T23:59:59-11:19:40（亚分钟 LMT -11:19:40 → -11:20:00）。
+        assert_eq!(tz_offset_seconds("Pacific/Niue", -543069620 - 1), Some(-40780));
+        assert_eq!(tz_offset_seconds("Pacific/Niue", -543069620), Some(-40800));
+    }
+
+    #[test]
+    fn apia_2011_skip_day() {
+        // 2011-12-30 跳变（24 小时日）：-10:00 → +14:00。
+        assert_eq!(tz_offset_seconds("Pacific/Apia", 1325239200 - 1), Some(-36000));
+        assert_eq!(tz_offset_seconds("Pacific/Apia", 1325239200), Some(50400));
+    }
+
+    #[test]
+    fn vancouver_2000_dst_start() {
+        // 2000-04-02 DST 开始（23 小时日）：-08:00 → -07:00。
+        assert_eq!(tz_offset_seconds("America/Vancouver", 954669600 - 1), Some(-28800));
+        assert_eq!(tz_offset_seconds("America/Vancouver", 954669600), Some(-25200));
+    }
+
+    #[test]
+    fn lord_howe_half_hour_dst() {
+        // 半小时 DST：+10:30 → +11:00。
+        assert_eq!(tz_offset_seconds("Australia/Lord_Howe", 941297400 - 1), Some(37800));
+        assert_eq!(tz_offset_seconds("Australia/Lord_Howe", 941297400), Some(39600));
+    }
+
+    #[test]
+    fn casey_two_transitions_same_wall_day() {
+        // 2010-03-04 同一墙历日两次生效（表中为两条不同纪元 transition），解析器只保表。
+        assert_eq!(tz_offset_seconds("Antarctica/Casey", 1267714800 - 1), Some(39600));
+        assert_eq!(tz_offset_seconds("Antarctica/Casey", 1267714800), Some(28800));
+    }
+
+    #[test]
+    fn riyadh_and_paris_lmt() {
+        // 1850 年 Riyadh LMT +03:06:52；1800 年 Paris LMT +00:09:21。
+        assert_eq!(tz_offset_seconds("Asia/Riyadh", -3786825600), Some(11212));
+        assert_eq!(tz_offset_seconds("Europe/Paris", -5364662400), Some(561));
+    }
+
+    #[test]
+    fn legacy_alias_hits() {
+        // 语料钉住的 legacy 区名命中别名表，解析到同一区数据（指针恒等）。
+        assert!(same_zone("Asia/Calcutta", "Asia/Kolkata"));
+        assert!(same_zone("Asia/Katmandu", "Asia/Kathmandu"));
+        assert!(same_zone("Etc/Ignored", "Etc/UTC"));
+        assert!(tz_is_iana_zone("Asia/Calcutta"));
+        assert!(tz_is_iana_zone("Etc/Ignored"));
+    }
+
+    #[test]
+    fn invalid_zone_returns_none() {
+        // 非法区名返回 None。
+        assert!(tz_zone_data("Mars/Olympus_Mons").is_none());
+        assert_eq!(tz_offset_seconds("Not/AZone", 0), None);
+        assert!(!tz_is_iana_zone("Not/AZone"));
+        assert_eq!(tz_next_transition("Not/AZone", 0), None);
+        assert_eq!(tz_prev_transition("Not/AZone", 0), None);
+    }
+
+    #[test]
+    fn next_and_prev_transition() {
+        // transition 前后边界。
+        assert_eq!(tz_next_transition("Pacific/Apia", 1325239200 - 1), Some(1325239200));
+        assert_eq!(tz_prev_transition("Pacific/Apia", 1325239200), Some(1316872800));
+        assert_eq!(tz_prev_transition("Pacific/Apia", -2445424384), None);
+        assert_eq!(tz_next_transition("Etc/UTC", 0), None);
+    }
+
+    #[test]
+    fn parse_tzif_version_header() {
+        // 版本头：魔数 / 版本字节 / 截断 / 非法版本。
+        assert!(matches!(parse_tzif(b"TZif"), Err(TzifError::Truncated)));
+        let mut bad_magic = b"XZif2".to_vec();
+        bad_magic.extend_from_slice(&[0u8; 39]);
+        assert!(matches!(parse_tzif(&bad_magic), Err(TzifError::BadMagic)));
+        let mut bad_ver = b"TZif".to_vec();
+        bad_ver.push(b'9');
+        bad_ver.extend_from_slice(&[0u8; 40]);
+        assert!(matches!(parse_tzif(&bad_ver), Err(TzifError::BadVersion)));
+    }
+}
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diff --git a/third_party/tzdb/Pacific/Tarawa b/third_party/tzdb/Pacific/Tarawa
new file mode 100644
index 00000000..47661d40
Binary files /dev/null and b/third_party/tzdb/Pacific/Tarawa differ
diff --git a/third_party/tzdb/Pacific/Tongatapu b/third_party/tzdb/Pacific/Tongatapu
new file mode 100644
index 00000000..c8824ab5
Binary files /dev/null and b/third_party/tzdb/Pacific/Tongatapu differ
diff --git a/third_party/tzdb/Pacific/Wake b/third_party/tzdb/Pacific/Wake
new file mode 100644
index 00000000..0e94913d
Binary files /dev/null and b/third_party/tzdb/Pacific/Wake differ
diff --git a/third_party/tzdb/Pacific/Wallis b/third_party/tzdb/Pacific/Wallis
new file mode 100644
index 00000000..14648aaa
Binary files /dev/null and b/third_party/tzdb/Pacific/Wallis differ
diff --git a/third_party/tzdb/Pacific/Yap b/third_party/tzdb/Pacific/Yap
new file mode 100644
index 00000000..680b88c6
Binary files /dev/null and b/third_party/tzdb/Pacific/Yap differ
diff --git a/third_party/tzdb/UTC b/third_party/tzdb/UTC
new file mode 100644
index 00000000..91558be0
Binary files /dev/null and b/third_party/tzdb/UTC differ
diff --git a/third_party/tzdb/iso3166.tab b/third_party/tzdb/iso3166.tab
new file mode 100644
index 00000000..4ae35234
--- /dev/null
+++ b/third_party/tzdb/iso3166.tab
@@ -0,0 +1,279 @@
+# ISO 3166 alpha-2 country codes
+#
+# This file is in the public domain, so clarified as of
+# 2009-05-17 by Arthur David Olson.
+#
+# From Paul Eggert (2025-07-01):
+# This file contains a table of two-letter country codes.  Columns are
+# separated by a single tab.  Lines beginning with ‘#’ are comments.
+# All text uses UTF-8 encoding.  The columns of the table are as follows:
+#
+# 1.  ISO 3166-1 alpha-2 country code, current as of
+#     ISO/TC 46 N1127 (2024-02-29).  See: ISO/TC 46 Documents
+#     https://www.iso.org/committee/48750.html?view=documents
+# 2.  The usual English name for the coded region.  This sometimes
+#     departs from ISO-listed names, sometimes so that sorted subsets
+#     of names are useful (e.g., “Samoa (American)” and “Samoa
+#     (western)” rather than “American Samoa” and “Samoa”),
+#     sometimes to avoid confusion among non-experts (e.g.,
+#     “Czech Republic” and “Turkey” rather than “Czechia” and “Türkiye”),
+#     and sometimes to omit needless detail or churn (e.g., “Netherlands”
+#     rather than “Netherlands (the)” or “Netherlands (Kingdom of the)”).
+#
+# The table is sorted by country code.
+#
+# This table is intended as an aid for users, to help them select time
+# zone data appropriate for their practical needs.  It is not intended
+# to take or endorse any position on legal or territorial claims.
+#
+#country-
+#code	name of country, territory, area, or subdivision
+AD	Andorra
+AE	United Arab Emirates
+AF	Afghanistan
+AG	Antigua & Barbuda
+AI	Anguilla
+AL	Albania
+AM	Armenia
+AO	Angola
+AQ	Antarctica
+AR	Argentina
+AS	Samoa (American)
+AT	Austria
+AU	Australia
+AW	Aruba
+AX	Åland Islands
+AZ	Azerbaijan
+BA	Bosnia & Herzegovina
+BB	Barbados
+BD	Bangladesh
+BE	Belgium
+BF	Burkina Faso
+BG	Bulgaria
+BH	Bahrain
+BI	Burundi
+BJ	Benin
+BL	St Barthelemy
+BM	Bermuda
+BN	Brunei
+BO	Bolivia
+BQ	Caribbean NL
+BR	Brazil
+BS	Bahamas
+BT	Bhutan
+BV	Bouvet Island
+BW	Botswana
+BY	Belarus
+BZ	Belize
+CA	Canada
+CC	Cocos (Keeling) Islands
+CD	Congo (Dem. Rep.)
+CF	Central African Rep.
+CG	Congo (Rep.)
+CH	Switzerland
+CI	Côte d’Ivoire
+CK	Cook Islands
+CL	Chile
+CM	Cameroon
+CN	China
+CO	Colombia
+CR	Costa Rica
+CU	Cuba
+CV	Cape Verde
+CW	Curaçao
+CX	Christmas Island
+CY	Cyprus
+CZ	Czech Republic
+DE	Germany
+DJ	Djibouti
+DK	Denmark
+DM	Dominica
+DO	Dominican Republic
+DZ	Algeria
+EC	Ecuador
+EE	Estonia
+EG	Egypt
+EH	Western Sahara
+ER	Eritrea
+ES	Spain
+ET	Ethiopia
+FI	Finland
+FJ	Fiji
+FK	Falkland Islands
+FM	Micronesia
+FO	Faroe Islands
+FR	France
+GA	Gabon
+GB	Britain (UK)
+GD	Grenada
+GE	Georgia
+GF	French Guiana
+GG	Guernsey
+GH	Ghana
+GI	Gibraltar
+GL	Greenland
+GM	Gambia
+GN	Guinea
+GP	Guadeloupe
+GQ	Equatorial Guinea
+GR	Greece
+GS	South Georgia & the South Sandwich Islands
+GT	Guatemala
+GU	Guam
+GW	Guinea-Bissau
+GY	Guyana
+HK	Hong Kong
+HM	Heard Island & McDonald Islands
+HN	Honduras
+HR	Croatia
+HT	Haiti
+HU	Hungary
+ID	Indonesia
+IE	Ireland
+IL	Israel
+IM	Isle of Man
+IN	India
+IO	British Indian Ocean Territory
+IQ	Iraq
+IR	Iran
+IS	Iceland
+IT	Italy
+JE	Jersey
+JM	Jamaica
+JO	Jordan
+JP	Japan
+KE	Kenya
+KG	Kyrgyzstan
+KH	Cambodia
+KI	Kiribati
+KM	Comoros
+KN	St Kitts & Nevis
+KP	Korea (North)
+KR	Korea (South)
+KW	Kuwait
+KY	Cayman Islands
+KZ	Kazakhstan
+LA	Laos
+LB	Lebanon
+LC	St Lucia
+LI	Liechtenstein
+LK	Sri Lanka
+LR	Liberia
+LS	Lesotho
+LT	Lithuania
+LU	Luxembourg
+LV	Latvia
+LY	Libya
+MA	Morocco
+MC	Monaco
+MD	Moldova
+ME	Montenegro
+MF	St Martin (French)
+MG	Madagascar
+MH	Marshall Islands
+MK	North Macedonia
+ML	Mali
+MM	Myanmar (Burma)
+MN	Mongolia
+MO	Macau
+MP	Northern Mariana Islands
+MQ	Martinique
+MR	Mauritania
+MS	Montserrat
+MT	Malta
+MU	Mauritius
+MV	Maldives
+MW	Malawi
+MX	Mexico
+MY	Malaysia
+MZ	Mozambique
+NA	Namibia
+NC	New Caledonia
+NE	Niger
+NF	Norfolk Island
+NG	Nigeria
+NI	Nicaragua
+NL	Netherlands
+NO	Norway
+NP	Nepal
+NR	Nauru
+NU	Niue
+NZ	New Zealand
+OM	Oman
+PA	Panama
+PE	Peru
+PF	French Polynesia
+PG	Papua New Guinea
+PH	Philippines
+PK	Pakistan
+PL	Poland
+PM	St Pierre & Miquelon
+PN	Pitcairn
+PR	Puerto Rico
+PS	Palestine
+PT	Portugal
+PW	Palau
+PY	Paraguay
+QA	Qatar
+RE	Réunion
+RO	Romania
+RS	Serbia
+RU	Russia
+RW	Rwanda
+SA	Saudi Arabia
+SB	Solomon Islands
+SC	Seychelles
+SD	Sudan
+SE	Sweden
+SG	Singapore
+SH	St Helena
+SI	Slovenia
+SJ	Svalbard & Jan Mayen
+SK	Slovakia
+SL	Sierra Leone
+SM	San Marino
+SN	Senegal
+SO	Somalia
+SR	Suriname
+SS	South Sudan
+ST	Sao Tome & Principe
+SV	El Salvador
+SX	St Maarten (Dutch)
+SY	Syria
+SZ	Eswatini (Swaziland)
+TC	Turks & Caicos Is
+TD	Chad
+TF	French S. Terr.
+TG	Togo
+TH	Thailand
+TJ	Tajikistan
+TK	Tokelau
+TL	East Timor
+TM	Turkmenistan
+TN	Tunisia
+TO	Tonga
+TR	Turkey
+TT	Trinidad & Tobago
+TV	Tuvalu
+TW	Taiwan
+TZ	Tanzania
+UA	Ukraine
+UG	Uganda
+UM	US minor outlying islands
+US	United States
+UY	Uruguay
+UZ	Uzbekistan
+VA	Vatican City
+VC	St Vincent
+VE	Venezuela
+VG	Virgin Islands (UK)
+VI	Virgin Islands (US)
+VN	Vietnam
+VU	Vanuatu
+WF	Wallis & Futuna
+WS	Samoa (western)
+YE	Yemen
+YT	Mayotte
+ZA	South Africa
+ZM	Zambia
+ZW	Zimbabwe
diff --git a/third_party/tzdb/leapseconds b/third_party/tzdb/leapseconds
new file mode 100644
index 00000000..a796e4b4
--- /dev/null
+++ b/third_party/tzdb/leapseconds
@@ -0,0 +1,86 @@
+# Allowance for leap seconds added to each time zone file.
+
+# This file is in the public domain.
+
+# This file is generated automatically from the data in the public-domain
+# NIST/IERS format leap-seconds.list file, which can be copied from
+# <https://hpiers.obspm.fr/iers/bul/bulc/ntp/leap-seconds.list>
+# or via a less-secure protocol and with different comments and
+# less volatile last-modified and expiration timestamps, from
+# <ftp://ftp.boulder.nist.gov/pub/time/leap-seconds.list>.
+# For more about leap-seconds.list, please see
+# The NTP Timescale and Leap Seconds
+# <https://www.eecis.udel.edu/~mills/leap.html>.
+
+# The rules for leap seconds are specified in Annex 1 (Time scales) of:
+# Standard-frequency and time-signal emissions.
+# International Telecommunication Union - Radiocommunication Sector
+# (ITU-R) Recommendation TF.460-6 (02/2002)
+# <https://www.itu.int/rec/R-REC-TF.460-6-200202-I/>.
+# The International Earth Rotation and Reference Systems Service (IERS)
+# periodically uses leap seconds to keep UTC to within 0.9 s of UT1
+# (a proxy for Earth's angle in space as measured by astronomers)
+# and publishes leap second data in a copyrighted file
+# <https://hpiers.obspm.fr/iers/bul/bulc/Leap_Second.dat>.
+# See: Levine J. Coordinated Universal Time and the leap second.
+# URSI Radio Sci Bull. 2016;89(4):30-6. doi:10.23919/URSIRSB.2016.7909995
+# <https://ieeexplore.ieee.org/document/7909995>.
+
+# There were no leap seconds before 1972, as no official mechanism
+# accounted for the discrepancy between atomic time (TAI) and the earth's
+# rotation.  The first ("1 Jan 1972") data line in leap-seconds.list
+# does not denote a leap second; it denotes the start of the current definition
+# of UTC.
+
+# All leap-seconds are Stationary (S) at the given UTC time.
+# The correction (+ or -) is made at the given time, so in the unlikely
+# event of a negative leap second, a line would look like this:
+# Leap	YEAR	MON	DAY	23:59:59	-	S
+# Typical lines look like this:
+# Leap	YEAR	MON	DAY	23:59:60	+	S
+Leap	1972	Jun	30	23:59:60	+	S
+Leap	1972	Dec	31	23:59:60	+	S
+Leap	1973	Dec	31	23:59:60	+	S
+Leap	1974	Dec	31	23:59:60	+	S
+Leap	1975	Dec	31	23:59:60	+	S
+Leap	1976	Dec	31	23:59:60	+	S
+Leap	1977	Dec	31	23:59:60	+	S
+Leap	1978	Dec	31	23:59:60	+	S
+Leap	1979	Dec	31	23:59:60	+	S
+Leap	1981	Jun	30	23:59:60	+	S
+Leap	1982	Jun	30	23:59:60	+	S
+Leap	1983	Jun	30	23:59:60	+	S
+Leap	1985	Jun	30	23:59:60	+	S
+Leap	1987	Dec	31	23:59:60	+	S
+Leap	1989	Dec	31	23:59:60	+	S
+Leap	1990	Dec	31	23:59:60	+	S
+Leap	1992	Jun	30	23:59:60	+	S
+Leap	1993	Jun	30	23:59:60	+	S
+Leap	1994	Jun	30	23:59:60	+	S
+Leap	1995	Dec	31	23:59:60	+	S
+Leap	1997	Jun	30	23:59:60	+	S
+Leap	1998	Dec	31	23:59:60	+	S
+Leap	2005	Dec	31	23:59:60	+	S
+Leap	2008	Dec	31	23:59:60	+	S
+Leap	2012	Jun	30	23:59:60	+	S
+Leap	2015	Jun	30	23:59:60	+	S
+Leap	2016	Dec	31	23:59:60	+	S
+
+# UTC timestamp when this leap second list expires.
+# Any additional leap seconds will come after this.
+# This Expires line is commented out for now,
+# so that pre-2020a zic implementations do not reject this file.
+#Expires 2026	Dec	28	00:00:00
+
+# Here are POSIX timestamps for the data in this file.
+# "#updated" gives the last time the leap seconds data changed
+# or, if this file was derived from the IERS leap-seconds.list,
+# the last time that file changed in any way.
+# "#expires" gives the first time this file might be wrong;
+# if this file was derived from the IERS leap-seconds.list,
+# this is typically a bit less than one year after "updated".
+#updated 1767698058 (2026-01-06 11:14:18 UTC)
+#expires 1798416000 (2026-12-28 00:00:00 UTC)
+
+#	Updated through IERS Bulletin C (https://hpiers.obspm.fr/iers/bul/bulc/bulletinc.dat)
+#	File expires on 28 December 2026
diff --git a/third_party/tzdb/posixrules b/third_party/tzdb/posixrules
new file mode 100644
index 00000000..a8b9ab19
Binary files /dev/null and b/third_party/tzdb/posixrules differ
diff --git a/third_party/tzdb/zone.tab b/third_party/tzdb/zone.tab
new file mode 100644
index 00000000..2ae8a8c4
--- /dev/null
+++ b/third_party/tzdb/zone.tab
@@ -0,0 +1,448 @@
+# tzdb timezone descriptions (deprecated version)
+#
+# This file is in the public domain, so clarified as of
+# 2009-05-17 by Arthur David Olson.
+#
+# From Paul Eggert (2021-09-20):
+# This file is intended as a backward-compatibility aid for older programs.
+# New programs should use zone1970.tab.  This file is like zone1970.tab (see
+# zone1970.tab's comments), but with the following additional restrictions:
+#
+# 1.  This file contains only ASCII characters.
+# 2.  The first data column contains exactly one country code.
+#
+# Because of (2), each row stands for an area that is the intersection
+# of a region identified by a country code and of a timezone where civil
+# clocks have agreed since 1970; this is a narrower definition than
+# that of zone1970.tab.
+#
+# Unlike zone1970.tab, a row's third column can be a Link from
+# 'backward' instead of a Zone.
+#
+# This table is intended as an aid for users, to help them select timezones
+# appropriate for their practical needs.  It is not intended to take or
+# endorse any position on legal or territorial claims.
+#
+#country-
+#code	coordinates	TZ			comments
+AD	+4230+00131	Europe/Andorra
+AE	+2518+05518	Asia/Dubai
+AF	+3431+06912	Asia/Kabul
+AG	+1703-06148	America/Antigua
+AI	+1812-06304	America/Anguilla
+AL	+4120+01950	Europe/Tirane
+AM	+4011+04430	Asia/Yerevan
+AO	-0848+01314	Africa/Luanda
+AQ	-7750+16636	Antarctica/McMurdo	New Zealand time - McMurdo, South Pole
+AQ	-6617+11031	Antarctica/Casey	Casey
+AQ	-6835+07758	Antarctica/Davis	Davis
+AQ	-6640+14001	Antarctica/DumontDUrville	Dumont-d'Urville
+AQ	-6736+06253	Antarctica/Mawson	Mawson
+AQ	-6448-06406	Antarctica/Palmer	Palmer
+AQ	-6734-06808	Antarctica/Rothera	Rothera
+AQ	-690022+0393524	Antarctica/Syowa	Syowa
+AQ	-720041+0023206	Antarctica/Troll	Troll
+AQ	-7824+10654	Antarctica/Vostok	Vostok
+AR	-3436-05827	America/Argentina/Buenos_Aires	Buenos Aires (BA, CF)
+AR	-3124-06411	America/Argentina/Cordoba	Argentina (most areas: CB, CC, CN, ER, FM, MN, SE, SF)
+AR	-2447-06525	America/Argentina/Salta	Salta (SA, LP, NQ, RN)
+AR	-2411-06518	America/Argentina/Jujuy	Jujuy (JY)
+AR	-2649-06513	America/Argentina/Tucuman	Tucuman (TM)
+AR	-2828-06547	America/Argentina/Catamarca	Catamarca (CT), Chubut (CH)
+AR	-2926-06651	America/Argentina/La_Rioja	La Rioja (LR)
+AR	-3132-06831	America/Argentina/San_Juan	San Juan (SJ)
+AR	-3253-06849	America/Argentina/Mendoza	Mendoza (MZ)
+AR	-3319-06621	America/Argentina/San_Luis	San Luis (SL)
+AR	-5138-06913	America/Argentina/Rio_Gallegos	Santa Cruz (SC)
+AR	-5448-06818	America/Argentina/Ushuaia	Tierra del Fuego (TF)
+AS	-1416-17042	Pacific/Pago_Pago
+AT	+4813+01620	Europe/Vienna
+AU	-3133+15905	Australia/Lord_Howe	Lord Howe Island
+AU	-5430+15857	Antarctica/Macquarie	Macquarie Island
+AU	-4253+14719	Australia/Hobart	Tasmania
+AU	-3749+14458	Australia/Melbourne	Victoria
+AU	-3352+15113	Australia/Sydney	New South Wales (most areas)
+AU	-3157+14127	Australia/Broken_Hill	New South Wales (Yancowinna)
+AU	-2728+15302	Australia/Brisbane	Queensland (most areas)
+AU	-2016+14900	Australia/Lindeman	Queensland (Whitsunday Islands)
+AU	-3455+13835	Australia/Adelaide	South Australia
+AU	-1228+13050	Australia/Darwin	Northern Territory
+AU	-3157+11551	Australia/Perth	Western Australia (most areas)
+AU	-3143+12852	Australia/Eucla	Western Australia (Eucla)
+AW	+1230-06958	America/Aruba
+AX	+6006+01957	Europe/Mariehamn
+AZ	+4023+04951	Asia/Baku
+BA	+4352+01825	Europe/Sarajevo
+BB	+1306-05937	America/Barbados
+BD	+2343+09025	Asia/Dhaka
+BE	+5050+00420	Europe/Brussels
+BF	+1222-00131	Africa/Ouagadougou
+BG	+4241+02319	Europe/Sofia
+BH	+2623+05035	Asia/Bahrain
+BI	-0323+02922	Africa/Bujumbura
+BJ	+0629+00237	Africa/Porto-Novo
+BL	+1753-06251	America/St_Barthelemy
+BM	+3217-06446	Atlantic/Bermuda
+BN	+0456+11455	Asia/Brunei
+BO	-1630-06809	America/La_Paz
+BQ	+120903-0681636	America/Kralendijk
+BR	-0351-03225	America/Noronha	Atlantic islands
+BR	-0127-04829	America/Belem	Para (east), Amapa
+BR	-0343-03830	America/Fortaleza	Brazil (northeast: MA, PI, CE, RN, PB)
+BR	-0803-03454	America/Recife	Pernambuco
+BR	-0712-04812	America/Araguaina	Tocantins
+BR	-0940-03543	America/Maceio	Alagoas, Sergipe
+BR	-1259-03831	America/Bahia	Bahia
+BR	-2332-04637	America/Sao_Paulo	Brazil (southeast: GO, DF, MG, ES, RJ, SP, PR, SC, RS)
+BR	-2027-05437	America/Campo_Grande	Mato Grosso do Sul
+BR	-1535-05605	America/Cuiaba	Mato Grosso
+BR	-0226-05452	America/Santarem	Para (west)
+BR	-0846-06354	America/Porto_Velho	Rondonia
+BR	+0249-06040	America/Boa_Vista	Roraima
+BR	-0308-06001	America/Manaus	Amazonas (east)
+BR	-0640-06952	America/Eirunepe	Amazonas (west)
+BR	-0958-06748	America/Rio_Branco	Acre
+BS	+2505-07721	America/Nassau
+BT	+2728+08939	Asia/Thimphu
+BW	-2439+02555	Africa/Gaborone
+BY	+5354+02734	Europe/Minsk
+BZ	+1730-08812	America/Belize
+CA	+4734-05243	America/St_Johns	Newfoundland, Labrador (SE)
+CA	+4439-06336	America/Halifax	Atlantic - NS (most areas), PE
+CA	+4612-05957	America/Glace_Bay	Atlantic - NS (Cape Breton)
+CA	+4606-06447	America/Moncton	Atlantic - New Brunswick
+CA	+5320-06025	America/Goose_Bay	Atlantic - Labrador (most areas)
+CA	+5125-05707	America/Blanc-Sablon	AST - QC (Lower North Shore)
+CA	+4339-07923	America/Toronto	Eastern - ON & QC (most areas)
+CA	+6344-06828	America/Iqaluit	Eastern - NU (most areas)
+CA	+484531-0913718	America/Atikokan	EST - ON (Atikokan), NU (Coral H)
+CA	+4953-09709	America/Winnipeg	Central - ON (west), Manitoba
+CA	+744144-0944945	America/Resolute	Central - NU (Resolute)
+CA	+624900-0920459	America/Rankin_Inlet	Central - NU (central)
+CA	+5024-10439	America/Regina	CST - SK (most areas)
+CA	+5017-10750	America/Swift_Current	CST - SK (midwest)
+CA	+5333-11328	America/Edmonton	Mountain - AB, BC(E), NT(E), SK(W)
+CA	+690650-1050310	America/Cambridge_Bay	Mountain - NU (west)
+CA	+682059-1334300	America/Inuvik	Mountain - NT (west)
+CA	+4916-12307	America/Vancouver	MST - BC (most areas)
+CA	+4906-11631	America/Creston	MST - BC (Creston)
+CA	+5546-12014	America/Dawson_Creek	MST - BC (Dawson Cr, Ft St John)
+CA	+5848-12242	America/Fort_Nelson	MST - BC (Ft Nelson)
+CA	+6043-13503	America/Whitehorse	MST - Yukon (east)
+CA	+6404-13925	America/Dawson	MST - Yukon (west)
+CC	-1210+09655	Indian/Cocos
+CD	-0418+01518	Africa/Kinshasa	Dem. Rep. of Congo (west)
+CD	-1140+02728	Africa/Lubumbashi	Dem. Rep. of Congo (east)
+CF	+0422+01835	Africa/Bangui
+CG	-0416+01517	Africa/Brazzaville
+CH	+4723+00832	Europe/Zurich
+CI	+0519-00402	Africa/Abidjan
+CK	-2114-15946	Pacific/Rarotonga
+CL	-3327-07040	America/Santiago	most of Chile
+CL	-4534-07204	America/Coyhaique	Aysen Region
+CL	-5309-07055	America/Punta_Arenas	Magallanes Region
+CL	-2709-10926	Pacific/Easter	Easter Island
+CM	+0403+00942	Africa/Douala
+CN	+3114+12128	Asia/Shanghai	Beijing Time
+CN	+4348+08735	Asia/Urumqi	Xinjiang Time
+CO	+0436-07405	America/Bogota
+CR	+0956-08405	America/Costa_Rica
+CU	+2308-08222	America/Havana
+CV	+1455-02331	Atlantic/Cape_Verde
+CW	+1211-06900	America/Curacao
+CX	-1025+10543	Indian/Christmas
+CY	+3510+03322	Asia/Nicosia	most of Cyprus
+CY	+3507+03357	Asia/Famagusta	Northern Cyprus
+CZ	+5005+01426	Europe/Prague
+DE	+5230+01322	Europe/Berlin	most of Germany
+DE	+4742+00841	Europe/Busingen	Busingen
+DJ	+1136+04309	Africa/Djibouti
+DK	+5540+01235	Europe/Copenhagen
+DM	+1518-06124	America/Dominica
+DO	+1828-06954	America/Santo_Domingo
+DZ	+3647+00303	Africa/Algiers
+EC	-0210-07950	America/Guayaquil	Ecuador (mainland)
+EC	-0054-08936	Pacific/Galapagos	Galapagos Islands
+EE	+5925+02445	Europe/Tallinn
+EG	+3003+03115	Africa/Cairo
+EH	+2709-01312	Africa/El_Aaiun
+ER	+1520+03853	Africa/Asmara
+ES	+4024-00341	Europe/Madrid	Spain (mainland)
+ES	+3553-00519	Africa/Ceuta	Ceuta, Melilla
+ES	+2806-01524	Atlantic/Canary	Canary Islands
+ET	+0902+03842	Africa/Addis_Ababa
+FI	+6010+02458	Europe/Helsinki
+FJ	-1808+17825	Pacific/Fiji
+FK	-5142-05751	Atlantic/Stanley
+FM	+0725+15147	Pacific/Chuuk	Chuuk/Truk, Yap
+FM	+0658+15813	Pacific/Pohnpei	Pohnpei/Ponape
+FM	+0519+16259	Pacific/Kosrae	Kosrae
+FO	+6201-00646	Atlantic/Faroe
+FR	+4852+00220	Europe/Paris
+GA	+0023+00927	Africa/Libreville
+GB	+513030-0000731	Europe/London
+GD	+1203-06145	America/Grenada
+GE	+4143+04449	Asia/Tbilisi
+GF	+0456-05220	America/Cayenne
+GG	+492717-0023210	Europe/Guernsey
+GH	+0533-00013	Africa/Accra
+GI	+3608-00521	Europe/Gibraltar
+GL	+6411-05144	America/Nuuk	most of Greenland
+GL	+7646-01840	America/Danmarkshavn	National Park (east coast)
+GL	+7029-02158	America/Scoresbysund	Scoresbysund/Ittoqqortoormiit
+GL	+7634-06847	America/Thule	Thule/Pituffik
+GM	+1328-01639	Africa/Banjul
+GN	+0931-01343	Africa/Conakry
+GP	+1614-06132	America/Guadeloupe
+GQ	+0345+00847	Africa/Malabo
+GR	+3758+02343	Europe/Athens
+GS	-5416-03632	Atlantic/South_Georgia
+GT	+1438-09031	America/Guatemala
+GU	+1328+14445	Pacific/Guam
+GW	+1151-01535	Africa/Bissau
+GY	+0648-05810	America/Guyana
+HK	+2217+11409	Asia/Hong_Kong
+HN	+1406-08713	America/Tegucigalpa
+HR	+4548+01558	Europe/Zagreb
+HT	+1832-07220	America/Port-au-Prince
+HU	+4730+01905	Europe/Budapest
+ID	-0610+10648	Asia/Jakarta	Java, Sumatra
+ID	-0002+10920	Asia/Pontianak	Borneo (west, central)
+ID	-0507+11924	Asia/Makassar	Borneo (east, south), Sulawesi/Celebes, Bali, Nusa Tengarra, Timor (west)
+ID	-0232+14042	Asia/Jayapura	New Guinea (West Papua / Irian Jaya), Malukus/Moluccas
+IE	+5320-00615	Europe/Dublin
+IL	+314650+0351326	Asia/Jerusalem
+IM	+5409-00428	Europe/Isle_of_Man
+IN	+2232+08822	Asia/Kolkata
+IO	-0720+07225	Indian/Chagos
+IQ	+3321+04425	Asia/Baghdad
+IR	+3540+05126	Asia/Tehran
+IS	+6409-02151	Atlantic/Reykjavik
+IT	+4154+01229	Europe/Rome
+JE	+491101-0020624	Europe/Jersey
+JM	+175805-0764736	America/Jamaica
+JO	+3157+03556	Asia/Amman
+JP	+353916+1394441	Asia/Tokyo
+KE	-0117+03649	Africa/Nairobi
+KG	+4254+07436	Asia/Bishkek
+KH	+1133+10455	Asia/Phnom_Penh
+KI	+0125+17300	Pacific/Tarawa	Gilbert Islands
+KI	-0247-17143	Pacific/Kanton	Phoenix Islands
+KI	+0152-15720	Pacific/Kiritimati	Line Islands
+KM	-1141+04316	Indian/Comoro
+KN	+1718-06243	America/St_Kitts
+KP	+3901+12545	Asia/Pyongyang
+KR	+3733+12658	Asia/Seoul
+KW	+2920+04759	Asia/Kuwait
+KY	+1918-08123	America/Cayman
+KZ	+4315+07657	Asia/Almaty	most of Kazakhstan
+KZ	+4448+06528	Asia/Qyzylorda	Qyzylorda/Kyzylorda/Kzyl-Orda
+KZ	+5312+06337	Asia/Qostanay	Qostanay/Kostanay/Kustanay
+KZ	+5017+05710	Asia/Aqtobe	Aqtobe/Aktobe
+KZ	+4431+05016	Asia/Aqtau	Mangghystau/Mankistau
+KZ	+4707+05156	Asia/Atyrau	Atyrau/Atirau/Gur'yev
+KZ	+5113+05121	Asia/Oral	West Kazakhstan
+LA	+1758+10236	Asia/Vientiane
+LB	+3353+03530	Asia/Beirut
+LC	+1401-06100	America/St_Lucia
+LI	+4709+00931	Europe/Vaduz
+LK	+0656+07951	Asia/Colombo
+LR	+0618-01047	Africa/Monrovia
+LS	-2928+02730	Africa/Maseru
+LT	+5441+02519	Europe/Vilnius
+LU	+4936+00609	Europe/Luxembourg
+LV	+5657+02406	Europe/Riga
+LY	+3254+01311	Africa/Tripoli
+MA	+3339-00735	Africa/Casablanca
+MC	+4342+00723	Europe/Monaco
+MD	+4700+02850	Europe/Chisinau
+ME	+4226+01916	Europe/Podgorica
+MF	+1804-06305	America/Marigot
+MG	-1855+04731	Indian/Antananarivo
+MH	+0709+17112	Pacific/Majuro	most of Marshall Islands
+MH	+0905+16720	Pacific/Kwajalein	Kwajalein
+MK	+4159+02126	Europe/Skopje
+ML	+1239-00800	Africa/Bamako
+MM	+1647+09610	Asia/Yangon
+MN	+4755+10653	Asia/Ulaanbaatar	most of Mongolia
+MN	+4801+09139	Asia/Hovd	Bayan-Olgii, Hovd, Uvs
+MO	+221150+1133230	Asia/Macau
+MP	+1512+14545	Pacific/Saipan
+MQ	+1436-06105	America/Martinique
+MR	+1806-01557	Africa/Nouakchott
+MS	+1643-06213	America/Montserrat
+MT	+3554+01431	Europe/Malta
+MU	-2010+05730	Indian/Mauritius
+MV	+0410+07330	Indian/Maldives
+MW	-1547+03500	Africa/Blantyre
+MX	+1924-09909	America/Mexico_City	Central Mexico
+MX	+2105-08646	America/Cancun	Quintana Roo
+MX	+2058-08937	America/Merida	Campeche, Yucatan
+MX	+2540-10019	America/Monterrey	Durango; Coahuila, Nuevo Leon, Tamaulipas (most areas)
+MX	+2550-09730	America/Matamoros	Coahuila, Nuevo Leon, Tamaulipas (US border)
+MX	+2838-10605	America/Chihuahua	Chihuahua (most areas)
+MX	+3144-10629	America/Ciudad_Juarez	Chihuahua (US border - west)
+MX	+2934-10425	America/Ojinaga	Chihuahua (US border - east)
+MX	+2313-10625	America/Mazatlan	Baja California Sur, Nayarit (most areas), Sinaloa
+MX	+2048-10515	America/Bahia_Banderas	Bahia de Banderas
+MX	+2904-11058	America/Hermosillo	Sonora
+MX	+3232-11701	America/Tijuana	Baja California
+MY	+0310+10142	Asia/Kuala_Lumpur	Malaysia (peninsula)
+MY	+0133+11020	Asia/Kuching	Sabah, Sarawak
+MZ	-2558+03235	Africa/Maputo
+NA	-2234+01706	Africa/Windhoek
+NC	-2216+16627	Pacific/Noumea
+NE	+1331+00207	Africa/Niamey
+NF	-2903+16758	Pacific/Norfolk
+NG	+0627+00324	Africa/Lagos
+NI	+1209-08617	America/Managua
+NL	+5222+00454	Europe/Amsterdam
+NO	+5955+01045	Europe/Oslo
+NP	+2743+08519	Asia/Kathmandu
+NR	-0031+16655	Pacific/Nauru
+NU	-1901-16955	Pacific/Niue
+NZ	-3652+17446	Pacific/Auckland	most of New Zealand
+NZ	-4357-17633	Pacific/Chatham	Chatham Islands
+OM	+2336+05835	Asia/Muscat
+PA	+0858-07932	America/Panama
+PE	-1203-07703	America/Lima
+PF	-1732-14934	Pacific/Tahiti	Society Islands
+PF	-0900-13930	Pacific/Marquesas	Marquesas Islands
+PF	-2308-13457	Pacific/Gambier	Gambier Islands
+PG	-0930+14710	Pacific/Port_Moresby	most of Papua New Guinea
+PG	-0613+15534	Pacific/Bougainville	Bougainville
+PH	+143512+1205804	Asia/Manila
+PK	+2452+06703	Asia/Karachi
+PL	+5215+02100	Europe/Warsaw
+PM	+4703-05620	America/Miquelon
+PN	-2504-13005	Pacific/Pitcairn
+PR	+182806-0660622	America/Puerto_Rico
+PS	+3130+03428	Asia/Gaza	Gaza Strip
+PS	+313200+0350542	Asia/Hebron	West Bank
+PT	+3843-00908	Europe/Lisbon	Portugal (mainland)
+PT	+3238-01654	Atlantic/Madeira	Madeira Islands
+PT	+3744-02540	Atlantic/Azores	Azores
+PW	+0720+13429	Pacific/Palau
+PY	-2516-05740	America/Asuncion
+QA	+2517+05132	Asia/Qatar
+RE	-2052+05528	Indian/Reunion
+RO	+4426+02606	Europe/Bucharest
+RS	+4450+02030	Europe/Belgrade
+RU	+5443+02030	Europe/Kaliningrad	MSK-01 - Kaliningrad
+RU	+554521+0373704	Europe/Moscow	MSK+00 - Moscow area
+# The obsolescent zone.tab format cannot represent Europe/Simferopol well.
+# Put it in RU section and list as UA.  See "territorial claims" above.
+# Programs should use zone1970.tab instead; see above.
+UA	+4457+03406	Europe/Simferopol	Crimea
+RU	+5836+04939	Europe/Kirov	MSK+00 - Kirov
+RU	+4844+04425	Europe/Volgograd	MSK+00 - Volgograd
+RU	+4621+04803	Europe/Astrakhan	MSK+01 - Astrakhan
+RU	+5134+04602	Europe/Saratov	MSK+01 - Saratov
+RU	+5420+04824	Europe/Ulyanovsk	MSK+01 - Ulyanovsk
+RU	+5312+05009	Europe/Samara	MSK+01 - Samara, Udmurtia
+RU	+5651+06036	Asia/Yekaterinburg	MSK+02 - Urals
+RU	+5500+07324	Asia/Omsk	MSK+03 - Omsk
+RU	+5502+08255	Asia/Novosibirsk	MSK+04 - Novosibirsk
+RU	+5322+08345	Asia/Barnaul	MSK+04 - Altai
+RU	+5630+08458	Asia/Tomsk	MSK+04 - Tomsk
+RU	+5345+08707	Asia/Novokuznetsk	MSK+04 - Kemerovo
+RU	+5601+09250	Asia/Krasnoyarsk	MSK+04 - Krasnoyarsk area
+RU	+5216+10420	Asia/Irkutsk	MSK+05 - Irkutsk, Buryatia
+RU	+5203+11328	Asia/Chita	MSK+06 - Zabaykalsky
+RU	+6200+12940	Asia/Yakutsk	MSK+06 - Lena River
+RU	+623923+1353314	Asia/Khandyga	MSK+06 - Tomponsky, Ust-Maysky
+RU	+4310+13156	Asia/Vladivostok	MSK+07 - Amur River
+RU	+643337+1431336	Asia/Ust-Nera	MSK+07 - Oymyakonsky
+RU	+5934+15048	Asia/Magadan	MSK+08 - Magadan
+RU	+4658+14242	Asia/Sakhalin	MSK+08 - Sakhalin Island
+RU	+6728+15343	Asia/Srednekolymsk	MSK+08 - Sakha (E), N Kuril Is
+RU	+5301+15839	Asia/Kamchatka	MSK+09 - Kamchatka
+RU	+6445+17729	Asia/Anadyr	MSK+09 - Bering Sea
+RW	-0157+03004	Africa/Kigali
+SA	+2438+04643	Asia/Riyadh
+SB	-0932+16012	Pacific/Guadalcanal
+SC	-0440+05528	Indian/Mahe
+SD	+1536+03232	Africa/Khartoum
+SE	+5920+01803	Europe/Stockholm
+SG	+0117+10351	Asia/Singapore
+SH	-1555-00542	Atlantic/St_Helena
+SI	+4603+01431	Europe/Ljubljana
+SJ	+7800+01600	Arctic/Longyearbyen
+SK	+4809+01707	Europe/Bratislava
+SL	+0830-01315	Africa/Freetown
+SM	+4355+01228	Europe/San_Marino
+SN	+1440-01726	Africa/Dakar
+SO	+0204+04522	Africa/Mogadishu
+SR	+0550-05510	America/Paramaribo
+SS	+0451+03137	Africa/Juba
+ST	+0020+00644	Africa/Sao_Tome
+SV	+1342-08912	America/El_Salvador
+SX	+180305-0630250	America/Lower_Princes
+SY	+3330+03618	Asia/Damascus
+SZ	-2618+03106	Africa/Mbabane
+TC	+2128-07108	America/Grand_Turk
+TD	+1207+01503	Africa/Ndjamena
+TF	-492110+0701303	Indian/Kerguelen
+TG	+0608+00113	Africa/Lome
+TH	+1345+10031	Asia/Bangkok
+TJ	+3835+06848	Asia/Dushanbe
+TK	-0922-17114	Pacific/Fakaofo
+TL	-0833+12535	Asia/Dili
+TM	+3757+05823	Asia/Ashgabat
+TN	+3648+01011	Africa/Tunis
+TO	-210800-1751200	Pacific/Tongatapu
+TR	+4101+02858	Europe/Istanbul
+TT	+1039-06131	America/Port_of_Spain
+TV	-0831+17913	Pacific/Funafuti
+TW	+2503+12130	Asia/Taipei
+TZ	-0648+03917	Africa/Dar_es_Salaam
+UA	+5026+03031	Europe/Kyiv	most of Ukraine
+UG	+0019+03225	Africa/Kampala
+UM	+2813-17722	Pacific/Midway	Midway Islands
+UM	+1917+16637	Pacific/Wake	Wake Island
+US	+404251-0740023	America/New_York	Eastern (most areas)
+US	+421953-0830245	America/Detroit	Eastern - MI (most areas)
+US	+381515-0854534	America/Kentucky/Louisville	Eastern - KY (Louisville area)
+US	+364947-0845057	America/Kentucky/Monticello	Eastern - KY (Wayne)
+US	+394606-0860929	America/Indiana/Indianapolis	Eastern - IN (most areas)
+US	+384038-0873143	America/Indiana/Vincennes	Eastern - IN (Da, Du, K, Mn)
+US	+410305-0863611	America/Indiana/Winamac	Eastern - IN (Pulaski)
+US	+382232-0862041	America/Indiana/Marengo	Eastern - IN (Crawford)
+US	+382931-0871643	America/Indiana/Petersburg	Eastern - IN (Pike)
+US	+384452-0850402	America/Indiana/Vevay	Eastern - IN (Switzerland)
+US	+415100-0873900	America/Chicago	Central (most areas)
+US	+375711-0864541	America/Indiana/Tell_City	Central - IN (Perry)
+US	+411745-0863730	America/Indiana/Knox	Central - IN (Starke)
+US	+450628-0873651	America/Menominee	Central - MI (Wisconsin border)
+US	+470659-1011757	America/North_Dakota/Center	Central - ND (Oliver)
+US	+465042-1012439	America/North_Dakota/New_Salem	Central - ND (Morton rural)
+US	+471551-1014640	America/North_Dakota/Beulah	Central - ND (Mercer)
+US	+394421-1045903	America/Denver	Mountain (most areas)
+US	+433649-1161209	America/Boise	Mountain - ID (south), OR (east)
+US	+332654-1120424	America/Phoenix	MST - AZ (except Navajo)
+US	+340308-1181434	America/Los_Angeles	Pacific
+US	+611305-1495401	America/Anchorage	Alaska (most areas)
+US	+581807-1342511	America/Juneau	Alaska - Juneau area
+US	+571035-1351807	America/Sitka	Alaska - Sitka area
+US	+550737-1313435	America/Metlakatla	Alaska - Annette Island
+US	+593249-1394338	America/Yakutat	Alaska - Yakutat
+US	+643004-1652423	America/Nome	Alaska (west)
+US	+515248-1763929	America/Adak	Alaska - western Aleutians
+US	+211825-1575130	Pacific/Honolulu	Hawaii
+UY	-345433-0561245	America/Montevideo
+UZ	+3940+06648	Asia/Samarkand	Uzbekistan (west)
+UZ	+4120+06918	Asia/Tashkent	Uzbekistan (east)
+VA	+415408+0122711	Europe/Vatican
+VC	+1309-06114	America/St_Vincent
+VE	+1030-06656	America/Caracas
+VG	+1827-06437	America/Tortola
+VI	+1821-06456	America/St_Thomas
+VN	+1045+10640	Asia/Ho_Chi_Minh
+VU	-1740+16825	Pacific/Efate
+WF	-1318-17610	Pacific/Wallis
+WS	-1350-17144	Pacific/Apia
+YE	+1245+04512	Asia/Aden
+YT	-1247+04514	Indian/Mayotte
+ZA	-2615+02800	Africa/Johannesburg
+ZM	-1525+02817	Africa/Lusaka
+ZW	-1750+03103	Africa/Harare
diff --git a/third_party/tzdb/zone1970.tab b/third_party/tzdb/zone1970.tab
new file mode 100644
index 00000000..a9b47bcb
--- /dev/null
+++ b/third_party/tzdb/zone1970.tab
@@ -0,0 +1,375 @@
+# tzdb timezone descriptions
+#
+# This file is in the public domain.
+#
+# From Paul Eggert (2025-05-15):
+# This file contains a table where each row stands for a timezone where
+# civil timestamps have agreed since 1970.  Columns are separated by
+# a single tab.  Lines beginning with ‘#’ are comments.  All text uses
+# UTF-8 encoding.  The columns of the table are as follows:
+#
+# 1.  The countries that overlap the timezone, as a comma-separated list
+#     of ISO 3166 2-character country codes.
+# 2.  Latitude and longitude of the timezone’s principal location
+#     in ISO 6709 sign-degrees-minutes-seconds format,
+#     either ±DDMM±DDDMM or ±DDMMSS±DDDMMSS,
+#     first latitude (+ is north), then longitude (+ is east).
+# 3.  Timezone name used in value of TZ environment variable.
+#     Please see the theory.html file for how these names are chosen.
+#     If multiple timezones overlap a country, each has a row in the
+#     table, with each column 1 containing the country code.
+# 4.  Comments; present if and only if countries have multiple timezones,
+#     and useful only for those countries.  For example, the comments
+#     for the row with countries CH,DE,LI and name Europe/Zurich
+#     are useful only for DE, since CH and LI have no other timezones.
+#
+# If a timezone covers multiple countries, the most-populous city is used,
+# and that country is listed first in column 1; any other countries
+# are listed alphabetically by country code.  The table is sorted
+# first by country code, then (if possible) by an order within the
+# country that (1) makes some geographical sense, and (2) puts the
+# most populous timezones first, where that does not contradict (1).
+#
+# This table is intended as an aid for users, to help them select timezones
+# appropriate for their practical needs.  It is not intended to take or
+# endorse any position on legal or territorial claims.
+#
+#country-
+#codes	coordinates	TZ	comments
+AD	+4230+00131	Europe/Andorra
+AE,OM,RE,SC,TF	+2518+05518	Asia/Dubai	Crozet
+AF	+3431+06912	Asia/Kabul
+AL	+4120+01950	Europe/Tirane
+AM	+4011+04430	Asia/Yerevan
+AQ	-6617+11031	Antarctica/Casey	Casey
+AQ	-6835+07758	Antarctica/Davis	Davis
+AQ	-6736+06253	Antarctica/Mawson	Mawson
+AQ	-6448-06406	Antarctica/Palmer	Palmer
+AQ	-6734-06808	Antarctica/Rothera	Rothera
+AQ	-720041+0023206	Antarctica/Troll	Troll
+AQ	-7824+10654	Antarctica/Vostok	Vostok
+AR	-3436-05827	America/Argentina/Buenos_Aires	Buenos Aires (BA, CF)
+AR	-3124-06411	America/Argentina/Cordoba	most areas: CB, CC, CN, ER, FM, MN, SE, SF
+AR	-2447-06525	America/Argentina/Salta	Salta (SA, LP, NQ, RN)
+AR	-2411-06518	America/Argentina/Jujuy	Jujuy (JY)
+AR	-2649-06513	America/Argentina/Tucuman	Tucumán (TM)
+AR	-2828-06547	America/Argentina/Catamarca	Catamarca (CT), Chubut (CH)
+AR	-2926-06651	America/Argentina/La_Rioja	La Rioja (LR)
+AR	-3132-06831	America/Argentina/San_Juan	San Juan (SJ)
+AR	-3253-06849	America/Argentina/Mendoza	Mendoza (MZ)
+AR	-3319-06621	America/Argentina/San_Luis	San Luis (SL)
+AR	-5138-06913	America/Argentina/Rio_Gallegos	Santa Cruz (SC)
+AR	-5448-06818	America/Argentina/Ushuaia	Tierra del Fuego (TF)
+AS,UM	-1416-17042	Pacific/Pago_Pago	Midway
+AT	+4813+01620	Europe/Vienna
+AU	-3133+15905	Australia/Lord_Howe	Lord Howe Island
+AU	-5430+15857	Antarctica/Macquarie	Macquarie Island
+AU	-4253+14719	Australia/Hobart	Tasmania
+AU	-3749+14458	Australia/Melbourne	Victoria
+AU	-3352+15113	Australia/Sydney	New South Wales (most areas)
+AU	-3157+14127	Australia/Broken_Hill	New South Wales (Yancowinna)
+AU	-2728+15302	Australia/Brisbane	Queensland (most areas)
+AU	-2016+14900	Australia/Lindeman	Queensland (Whitsunday Islands)
+AU	-3455+13835	Australia/Adelaide	South Australia
+AU	-1228+13050	Australia/Darwin	Northern Territory
+AU	-3157+11551	Australia/Perth	Western Australia (most areas)
+AU	-3143+12852	Australia/Eucla	Western Australia (Eucla)
+AZ	+4023+04951	Asia/Baku
+BB	+1306-05937	America/Barbados
+BD	+2343+09025	Asia/Dhaka
+BE,LU,NL	+5050+00420	Europe/Brussels
+BG	+4241+02319	Europe/Sofia
+BM	+3217-06446	Atlantic/Bermuda
+BO	-1630-06809	America/La_Paz
+BR	-0351-03225	America/Noronha	Atlantic islands
+BR	-0127-04829	America/Belem	Pará (east), Amapá
+BR	-0343-03830	America/Fortaleza	Brazil (northeast: MA, PI, CE, RN, PB)
+BR	-0803-03454	America/Recife	Pernambuco
+BR	-0712-04812	America/Araguaina	Tocantins
+BR	-0940-03543	America/Maceio	Alagoas, Sergipe
+BR	-1259-03831	America/Bahia	Bahia
+BR	-2332-04637	America/Sao_Paulo	Brazil (southeast: GO, DF, MG, ES, RJ, SP, PR, SC, RS)
+BR	-2027-05437	America/Campo_Grande	Mato Grosso do Sul
+BR	-1535-05605	America/Cuiaba	Mato Grosso
+BR	-0226-05452	America/Santarem	Pará (west)
+BR	-0846-06354	America/Porto_Velho	Rondônia
+BR	+0249-06040	America/Boa_Vista	Roraima
+BR	-0308-06001	America/Manaus	Amazonas (east)
+BR	-0640-06952	America/Eirunepe	Amazonas (west)
+BR	-0958-06748	America/Rio_Branco	Acre
+BT	+2728+08939	Asia/Thimphu
+BY	+5354+02734	Europe/Minsk
+BZ	+1730-08812	America/Belize
+CA	+4734-05243	America/St_Johns	Newfoundland, Labrador (SE)
+CA	+4439-06336	America/Halifax	Atlantic - NS (most areas), PE
+CA	+4612-05957	America/Glace_Bay	Atlantic - NS (Cape Breton)
+CA	+4606-06447	America/Moncton	Atlantic - New Brunswick
+CA	+5320-06025	America/Goose_Bay	Atlantic - Labrador (most areas)
+CA,BS	+4339-07923	America/Toronto	Eastern - ON & QC (most areas)
+CA	+6344-06828	America/Iqaluit	Eastern - NU (most areas)
+CA	+4953-09709	America/Winnipeg	Central - ON (west), Manitoba
+CA	+744144-0944945	America/Resolute	Central - NU (Resolute)
+CA	+624900-0920459	America/Rankin_Inlet	Central - NU (central)
+CA	+5024-10439	America/Regina	CST - SK (most areas)
+CA	+5017-10750	America/Swift_Current	CST - SK (midwest)
+CA	+5333-11328	America/Edmonton	Mountain - AB, BC(E), NT(E), SK(W)
+CA	+690650-1050310	America/Cambridge_Bay	Mountain - NU (west)
+CA	+682059-1334300	America/Inuvik	Mountain - NT (west)
+CA	+4916-12307	America/Vancouver	MST - BC (most areas)
+CA	+5546-12014	America/Dawson_Creek	MST - BC (Dawson Cr, Ft St John)
+CA	+5848-12242	America/Fort_Nelson	MST - BC (Ft Nelson)
+CA	+6043-13503	America/Whitehorse	MST - Yukon (east)
+CA	+6404-13925	America/Dawson	MST - Yukon (west)
+CH,DE,LI	+4723+00832	Europe/Zurich	Büsingen
+CI,BF,GH,GM,GN,IS,ML,MR,SH,SL,SN,TG	+0519-00402	Africa/Abidjan
+CK	-2114-15946	Pacific/Rarotonga
+CL	-3327-07040	America/Santiago	most of Chile
+CL	-4534-07204	America/Coyhaique	Aysén Region
+CL	-5309-07055	America/Punta_Arenas	Magallanes Region
+CL	-2709-10926	Pacific/Easter	Easter Island
+CN	+3114+12128	Asia/Shanghai	Beijing Time
+CN	+4348+08735	Asia/Urumqi	Xinjiang Time
+CO	+0436-07405	America/Bogota
+CR	+0956-08405	America/Costa_Rica
+CU	+2308-08222	America/Havana
+CV	+1455-02331	Atlantic/Cape_Verde
+CY	+3510+03322	Asia/Nicosia	most of Cyprus
+CY	+3507+03357	Asia/Famagusta	Northern Cyprus
+CZ,SK	+5005+01426	Europe/Prague
+DE,DK,NO,SE,SJ	+5230+01322	Europe/Berlin	most of Germany
+DO	+1828-06954	America/Santo_Domingo
+DZ	+3647+00303	Africa/Algiers
+EC	-0210-07950	America/Guayaquil	Ecuador (mainland)
+EC	-0054-08936	Pacific/Galapagos	Galápagos Islands
+EE	+5925+02445	Europe/Tallinn
+EG	+3003+03115	Africa/Cairo
+EH	+2709-01312	Africa/El_Aaiun
+ES	+4024-00341	Europe/Madrid	Spain (mainland)
+ES	+3553-00519	Africa/Ceuta	Ceuta, Melilla
+ES	+2806-01524	Atlantic/Canary	Canary Islands
+FI,AX	+6010+02458	Europe/Helsinki
+FJ	-1808+17825	Pacific/Fiji
+FK	-5142-05751	Atlantic/Stanley
+FM	+0519+16259	Pacific/Kosrae	Kosrae
+FO	+6201-00646	Atlantic/Faroe
+FR,MC	+4852+00220	Europe/Paris
+GB,GG,IM,JE	+513030-0000731	Europe/London
+GE	+4143+04449	Asia/Tbilisi
+GF	+0456-05220	America/Cayenne
+GI	+3608-00521	Europe/Gibraltar
+GL	+6411-05144	America/Nuuk	most of Greenland
+GL	+7646-01840	America/Danmarkshavn	National Park (east coast)
+GL	+7029-02158	America/Scoresbysund	Scoresbysund/Ittoqqortoormiit
+GL	+7634-06847	America/Thule	Thule/Pituffik
+GR	+3758+02343	Europe/Athens
+GS	-5416-03632	Atlantic/South_Georgia
+GT	+1438-09031	America/Guatemala
+GU,MP	+1328+14445	Pacific/Guam
+GW	+1151-01535	Africa/Bissau
+GY	+0648-05810	America/Guyana
+HK	+2217+11409	Asia/Hong_Kong
+HN	+1406-08713	America/Tegucigalpa
+HT	+1832-07220	America/Port-au-Prince
+HU	+4730+01905	Europe/Budapest
+ID	-0610+10648	Asia/Jakarta	Java, Sumatra
+ID	-0002+10920	Asia/Pontianak	Borneo (west, central)
+ID	-0507+11924	Asia/Makassar	Borneo (east, south), Sulawesi/Celebes, Bali, Nusa Tengarra, Timor (west)
+ID	-0232+14042	Asia/Jayapura	New Guinea (West Papua / Irian Jaya), Malukus/Moluccas
+IE	+5320-00615	Europe/Dublin
+IL	+314650+0351326	Asia/Jerusalem
+IN	+2232+08822	Asia/Kolkata
+IO	-0720+07225	Indian/Chagos
+IQ	+3321+04425	Asia/Baghdad
+IR	+3540+05126	Asia/Tehran
+IT,SM,VA	+4154+01229	Europe/Rome
+JM	+175805-0764736	America/Jamaica
+JO	+3157+03556	Asia/Amman
+JP,AU	+353916+1394441	Asia/Tokyo	Eyre Bird Observatory
+KE,DJ,ER,ET,KM,MG,SO,TZ,UG,YT	-0117+03649	Africa/Nairobi
+KG	+4254+07436	Asia/Bishkek
+KI,MH,TV,UM,WF	+0125+17300	Pacific/Tarawa	Gilberts, Marshalls, Wake
+KI	-0247-17143	Pacific/Kanton	Phoenix Islands
+KI	+0152-15720	Pacific/Kiritimati	Line Islands
+KP	+3901+12545	Asia/Pyongyang
+KR	+3733+12658	Asia/Seoul
+KZ	+4315+07657	Asia/Almaty	most of Kazakhstan
+KZ	+4448+06528	Asia/Qyzylorda	Qyzylorda/Kyzylorda/Kzyl-Orda
+KZ	+5312+06337	Asia/Qostanay	Qostanay/Kostanay/Kustanay
+KZ	+5017+05710	Asia/Aqtobe	Aqtöbe/Aktobe
+KZ	+4431+05016	Asia/Aqtau	Mangghystaū/Mankistau
+KZ	+4707+05156	Asia/Atyrau	Atyraū/Atirau/Gur’yev
+KZ	+5113+05121	Asia/Oral	West Kazakhstan
+LB	+3353+03530	Asia/Beirut
+LK	+0656+07951	Asia/Colombo
+LR	+0618-01047	Africa/Monrovia
+LT	+5441+02519	Europe/Vilnius
+LV	+5657+02406	Europe/Riga
+LY	+3254+01311	Africa/Tripoli
+MA	+3339-00735	Africa/Casablanca
+MD	+4700+02850	Europe/Chisinau
+MH	+0905+16720	Pacific/Kwajalein	Kwajalein
+MM,CC	+1647+09610	Asia/Yangon
+MN	+4755+10653	Asia/Ulaanbaatar	most of Mongolia
+MN	+4801+09139	Asia/Hovd	Bayan-Ölgii, Hovd, Uvs
+MO	+221150+1133230	Asia/Macau
+MQ	+1436-06105	America/Martinique
+MT	+3554+01431	Europe/Malta
+MU	-2010+05730	Indian/Mauritius
+MV,TF	+0410+07330	Indian/Maldives	Kerguelen, St Paul I, Amsterdam I
+MX	+1924-09909	America/Mexico_City	Central Mexico
+MX	+2105-08646	America/Cancun	Quintana Roo
+MX	+2058-08937	America/Merida	Campeche, Yucatán
+MX	+2540-10019	America/Monterrey	Durango; Coahuila, Nuevo León, Tamaulipas (most areas)
+MX	+2550-09730	America/Matamoros	Coahuila, Nuevo León, Tamaulipas (US border)
+MX	+2838-10605	America/Chihuahua	Chihuahua (most areas)
+MX	+3144-10629	America/Ciudad_Juarez	Chihuahua (US border - west)
+MX	+2934-10425	America/Ojinaga	Chihuahua (US border - east)
+MX	+2313-10625	America/Mazatlan	Baja California Sur, Nayarit (most areas), Sinaloa
+MX	+2048-10515	America/Bahia_Banderas	Bahía de Banderas
+MX	+2904-11058	America/Hermosillo	Sonora
+MX	+3232-11701	America/Tijuana	Baja California
+MY,BN	+0133+11020	Asia/Kuching	Sabah, Sarawak
+MZ,BI,BW,CD,MW,RW,ZM,ZW	-2558+03235	Africa/Maputo	Central Africa Time
+NA	-2234+01706	Africa/Windhoek
+NC	-2216+16627	Pacific/Noumea
+NF	-2903+16758	Pacific/Norfolk
+NG,AO,BJ,CD,CF,CG,CM,GA,GQ,NE	+0627+00324	Africa/Lagos	West Africa Time
+NI	+1209-08617	America/Managua
+NP	+2743+08519	Asia/Kathmandu
+NR	-0031+16655	Pacific/Nauru
+NU	-1901-16955	Pacific/Niue
+NZ,AQ	-3652+17446	Pacific/Auckland	New Zealand time
+NZ	-4357-17633	Pacific/Chatham	Chatham Islands
+PA,CA,KY	+0858-07932	America/Panama	EST - ON (Atikokan), NU (Coral H)
+PE	-1203-07703	America/Lima
+PF	-1732-14934	Pacific/Tahiti	Society Islands
+PF	-0900-13930	Pacific/Marquesas	Marquesas Islands
+PF	-2308-13457	Pacific/Gambier	Gambier Islands
+PG,AQ,FM	-0930+14710	Pacific/Port_Moresby	Papua New Guinea (most areas), Chuuk, Yap, Dumont d’Urville
+PG	-0613+15534	Pacific/Bougainville	Bougainville
+PH	+143512+1205804	Asia/Manila
+PK	+2452+06703	Asia/Karachi
+PL	+5215+02100	Europe/Warsaw
+PM	+4703-05620	America/Miquelon
+PN	-2504-13005	Pacific/Pitcairn
+PR,AG,CA,AI,AW,BL,BQ,CW,DM,GD,GP,KN,LC,MF,MS,SX,TT,VC,VG,VI	+182806-0660622	America/Puerto_Rico	AST - QC (Lower North Shore)
+PS	+3130+03428	Asia/Gaza	Gaza Strip
+PS	+313200+0350542	Asia/Hebron	West Bank
+PT	+3843-00908	Europe/Lisbon	Portugal (mainland)
+PT	+3238-01654	Atlantic/Madeira	Madeira Islands
+PT	+3744-02540	Atlantic/Azores	Azores
+PW	+0720+13429	Pacific/Palau
+PY	-2516-05740	America/Asuncion
+QA,BH	+2517+05132	Asia/Qatar
+RO	+4426+02606	Europe/Bucharest
+RS,BA,HR,ME,MK,SI	+4450+02030	Europe/Belgrade
+RU	+5443+02030	Europe/Kaliningrad	MSK-01 - Kaliningrad
+RU	+554521+0373704	Europe/Moscow	MSK+00 - Moscow area
+# Mention RU and UA alphabetically.  See “territorial claims” above.
+RU,UA	+4457+03406	Europe/Simferopol	Crimea
+RU	+5836+04939	Europe/Kirov	MSK+00 - Kirov
+RU	+4844+04425	Europe/Volgograd	MSK+00 - Volgograd
+RU	+4621+04803	Europe/Astrakhan	MSK+01 - Astrakhan
+RU	+5134+04602	Europe/Saratov	MSK+01 - Saratov
+RU	+5420+04824	Europe/Ulyanovsk	MSK+01 - Ulyanovsk
+RU	+5312+05009	Europe/Samara	MSK+01 - Samara, Udmurtia
+RU	+5651+06036	Asia/Yekaterinburg	MSK+02 - Urals
+RU	+5500+07324	Asia/Omsk	MSK+03 - Omsk
+RU	+5502+08255	Asia/Novosibirsk	MSK+04 - Novosibirsk
+RU	+5322+08345	Asia/Barnaul	MSK+04 - Altai
+RU	+5630+08458	Asia/Tomsk	MSK+04 - Tomsk
+RU	+5345+08707	Asia/Novokuznetsk	MSK+04 - Kemerovo
+RU	+5601+09250	Asia/Krasnoyarsk	MSK+04 - Krasnoyarsk area
+RU	+5216+10420	Asia/Irkutsk	MSK+05 - Irkutsk, Buryatia
+RU	+5203+11328	Asia/Chita	MSK+06 - Zabaykalsky
+RU	+6200+12940	Asia/Yakutsk	MSK+06 - Lena River
+RU	+623923+1353314	Asia/Khandyga	MSK+06 - Tomponsky, Ust-Maysky
+RU	+4310+13156	Asia/Vladivostok	MSK+07 - Amur River
+RU	+643337+1431336	Asia/Ust-Nera	MSK+07 - Oymyakonsky
+RU	+5934+15048	Asia/Magadan	MSK+08 - Magadan
+RU	+4658+14242	Asia/Sakhalin	MSK+08 - Sakhalin Island
+RU	+6728+15343	Asia/Srednekolymsk	MSK+08 - Sakha (E), N Kuril Is
+RU	+5301+15839	Asia/Kamchatka	MSK+09 - Kamchatka
+RU	+6445+17729	Asia/Anadyr	MSK+09 - Bering Sea
+SA,AQ,KW,YE	+2438+04643	Asia/Riyadh	Syowa
+SB,FM	-0932+16012	Pacific/Guadalcanal	Pohnpei
+SD	+1536+03232	Africa/Khartoum
+SG,AQ,MY	+0117+10351	Asia/Singapore	peninsular Malaysia, Concordia
+SR	+0550-05510	America/Paramaribo
+SS	+0451+03137	Africa/Juba
+ST	+0020+00644	Africa/Sao_Tome
+SV	+1342-08912	America/El_Salvador
+SY	+3330+03618	Asia/Damascus
+TC	+2128-07108	America/Grand_Turk
+TD	+1207+01503	Africa/Ndjamena
+TH,CX,KH,LA,VN	+1345+10031	Asia/Bangkok	north Vietnam
+TJ	+3835+06848	Asia/Dushanbe
+TK	-0922-17114	Pacific/Fakaofo
+TL	-0833+12535	Asia/Dili
+TM	+3757+05823	Asia/Ashgabat
+TN	+3648+01011	Africa/Tunis
+TO	-210800-1751200	Pacific/Tongatapu
+TR	+4101+02858	Europe/Istanbul
+TW	+2503+12130	Asia/Taipei
+UA	+5026+03031	Europe/Kyiv	most of Ukraine
+US	+404251-0740023	America/New_York	Eastern (most areas)
+US	+421953-0830245	America/Detroit	Eastern - MI (most areas)
+US	+381515-0854534	America/Kentucky/Louisville	Eastern - KY (Louisville area)
+US	+364947-0845057	America/Kentucky/Monticello	Eastern - KY (Wayne)
+US	+394606-0860929	America/Indiana/Indianapolis	Eastern - IN (most areas)
+US	+384038-0873143	America/Indiana/Vincennes	Eastern - IN (Da, Du, K, Mn)
+US	+410305-0863611	America/Indiana/Winamac	Eastern - IN (Pulaski)
+US	+382232-0862041	America/Indiana/Marengo	Eastern - IN (Crawford)
+US	+382931-0871643	America/Indiana/Petersburg	Eastern - IN (Pike)
+US	+384452-0850402	America/Indiana/Vevay	Eastern - IN (Switzerland)
+US	+415100-0873900	America/Chicago	Central (most areas)
+US	+375711-0864541	America/Indiana/Tell_City	Central - IN (Perry)
+US	+411745-0863730	America/Indiana/Knox	Central - IN (Starke)
+US	+450628-0873651	America/Menominee	Central - MI (Wisconsin border)
+US	+470659-1011757	America/North_Dakota/Center	Central - ND (Oliver)
+US	+465042-1012439	America/North_Dakota/New_Salem	Central - ND (Morton rural)
+US	+471551-1014640	America/North_Dakota/Beulah	Central - ND (Mercer)
+US	+394421-1045903	America/Denver	Mountain (most areas)
+US	+433649-1161209	America/Boise	Mountain - ID (south), OR (east)
+US,CA	+332654-1120424	America/Phoenix	MST - AZ (most areas), Creston BC
+US	+340308-1181434	America/Los_Angeles	Pacific
+US	+611305-1495401	America/Anchorage	Alaska (most areas)
+US	+581807-1342511	America/Juneau	Alaska - Juneau area
+US	+571035-1351807	America/Sitka	Alaska - Sitka area
+US	+550737-1313435	America/Metlakatla	Alaska - Annette Island
+US	+593249-1394338	America/Yakutat	Alaska - Yakutat
+US	+643004-1652423	America/Nome	Alaska (west)
+US	+515248-1763929	America/Adak	Alaska - western Aleutians
+US	+211825-1575130	Pacific/Honolulu	Hawaii
+UY	-345433-0561245	America/Montevideo
+UZ	+3940+06648	Asia/Samarkand	Uzbekistan (west)
+UZ	+4120+06918	Asia/Tashkent	Uzbekistan (east)
+VE	+1030-06656	America/Caracas
+VN	+1045+10640	Asia/Ho_Chi_Minh	south Vietnam
+VU	-1740+16825	Pacific/Efate
+WS	-1350-17144	Pacific/Apia
+ZA,LS,SZ	-2615+02800	Africa/Johannesburg
+#
+# The next section contains experimental tab-separated comments for
+# use by user agents like tzselect that identify continents and oceans.
+#
+# For example, the comment ‘#@AQ<tab>Antarctica/’ means the country code
+# AQ is in the continent Antarctica regardless of the Zone name,
+# so Pacific/Auckland should be listed under Antarctica as well as
+# under the Pacific because its line’s country codes include AQ.
+#
+# If more than one country code is affected each is listed separated
+# by commas, e.g., ‘#@IS,SH<tab>Atlantic/’.  If a country code is in
+# more than one continent or ocean, each is listed separated by
+# commas, e.g., the second column of ‘#@CY,TR<tab>Asia/,Europe/’.
+#
+# These experimental comments are present only for country codes where
+# the continent or ocean is not already obvious from the Zone name.
+# For example, there is no such comment for RU since it already
+# corresponds to Zone names starting with both ‘Europe/’ and ‘Asia/’.
+#
+#@AQ	Antarctica/
+#@IS,SH	Atlantic/
+#@CY,TR	Asia/,Europe/
+#@SJ	Arctic/
+#@CC,CX,KM,MG,YT	Indian/
diff --git a/third_party/tzdb/zonenow.tab b/third_party/tzdb/zonenow.tab
new file mode 100644
index 00000000..54e4485d
--- /dev/null
+++ b/third_party/tzdb/zonenow.tab
@@ -0,0 +1,296 @@
+# tzdb timezone descriptions, for users who do not care about old timestamps
+#
+# This file is in the public domain.
+#
+# From Paul Eggert (2023-12-18):
+# This file contains a table where each row stands for a timezone
+# where civil timestamps are predicted to agree from now on.
+# This file is like zone1970.tab (see zone1970.tab’s comments),
+# but with the following changes:
+#
+# 1.  Each timezone corresponds to a set of clocks that are planned
+#     to agree from now on.  This is a larger set of clocks than in
+#     zone1970.tab, where each timezone’s clocks must agree from 1970 on.
+# 2.  The first column is irrelevant and ignored.
+# 3.  The table is sorted in a different way:
+#     first by standard time UTC offset;
+#     then, if DST is used, by daylight saving UTC offset;
+#     then by time zone abbreviation.
+# 4.  Every timezone has a nonempty comments column, with wording
+#     distinguishing the timezone only from other timezones with the
+#     same UTC offset at some point during the year.
+#
+# The format of this table is experimental, and may change in future versions.
+#
+# This table is intended as an aid for users, to help them select timezones
+# appropriate for their practical needs.  It is not intended to take or
+# endorse any position on legal or territorial claims.
+#
+#XX	coordinates	TZ	comments
+#
+# -11 - SST
+XX	-1416-17042	Pacific/Pago_Pago	Midway; Samoa (SST)
+#
+# -11
+XX	-1901-16955	Pacific/Niue	Niue
+#
+# -10 - HST
+XX	+211825-1575130	Pacific/Honolulu	Hawaii (HST)
+#
+# -10
+XX	-1732-14934	Pacific/Tahiti	Tahiti; Cook Islands
+#
+# -10/-09 - HST / HDT (North America DST)
+XX	+515248-1763929	America/Adak	western Aleutians in Alaska (HST/HDT)
+#
+# -09:30
+XX	-0900-13930	Pacific/Marquesas	Marquesas
+#
+# -09
+XX	-2308-13457	Pacific/Gambier	Gambier
+#
+# -09/-08 - AKST/AKDT (North America DST)
+XX	+611305-1495401	America/Anchorage	most of Alaska (AKST/AKDT)
+#
+# -08
+XX	-2504-13005	Pacific/Pitcairn	Pitcairn
+#
+# -08/-07 - PST/PDT (North America DST)
+XX	+340308-1181434	America/Los_Angeles	Pacific (PST/PDT) - US & Canada; Mexico near US border
+#
+# -08/-07 - PST/PDT (North America DST) until 2026-11-01 02:00; then MST
+XX	+4916-12307	America/Vancouver	MST - BC (most areas)
+#
+# -07 - MST
+XX	+332654-1120424	America/Phoenix	Mountain Standard (MST) - Arizona; western Mexico; Yukon
+#
+# -07/-06 - MST/MDT (North America DST)
+XX	+394421-1045903	America/Denver	Mountain (MST/MDT) - US & Canada; Mexico near US border
+#
+# -06
+XX	-0054-08936	Pacific/Galapagos	Galápagos
+#
+# -06 - CST
+XX	+1924-09909	America/Mexico_City	Central Standard (CST) - Saskatchewan; central Mexico; Central America
+#
+# -06/-05 (Chile DST)
+XX	-2709-10926	Pacific/Easter	Easter Island
+#
+# -06/-05 - CST/CDT (North America DST)
+XX	+415100-0873900	America/Chicago	Central (CST/CDT) - US & Canada; Mexico near US border
+#
+# -05
+XX	-1203-07703	America/Lima	eastern South America
+#
+# -05 - EST
+XX	+175805-0764736	America/Jamaica	Eastern Standard (EST) - Caymans; Jamaica; eastern Mexico; Panama
+#
+# -05/-04 - CST/CDT (Cuba DST)
+XX	+2308-08222	America/Havana	Cuba
+#
+# -05/-04 - EST/EDT (North America DST)
+XX	+404251-0740023	America/New_York	Eastern (EST/EDT) - US & Canada
+#
+# -04
+XX	+1030-06656	America/Caracas	western South America
+#
+# -04 - AST
+XX	+1828-06954	America/Santo_Domingo	Atlantic Standard (AST) - eastern Caribbean
+#
+# -04/-03 (Chile DST)
+XX	-3327-07040	America/Santiago	most of Chile
+#
+# -04/-03 - AST/ADT (North America DST)
+XX	+4439-06336	America/Halifax	Atlantic (AST/ADT) - Canada; Bermuda
+#
+# -03:30/-02:30 - NST/NDT (North America DST)
+XX	+4734-05243	America/St_Johns	Newfoundland (NST/NDT)
+#
+# -03
+XX	-2332-04637	America/Sao_Paulo	eastern and southern South America
+#
+# -03/-02 (North America DST)
+XX	+4703-05620	America/Miquelon	St Pierre & Miquelon
+#
+# -02
+XX	-0351-03225	America/Noronha	Fernando de Noronha; South Georgia
+#
+# -02/-01 (EU DST)
+XX	+6411-05144	America/Nuuk	most of Greenland
+#
+# -01
+XX	+1455-02331	Atlantic/Cape_Verde	Cape Verde
+#
+# -01/+00 (EU DST)
+XX	+3744-02540	Atlantic/Azores	Azores
+#
+# +00 - GMT
+XX	+0519-00402	Africa/Abidjan	far western Africa; Iceland (GMT)
+#
+# +00/+01 - GMT/BST (EU DST)
+XX	+513030-0000731	Europe/London	United Kingdom (GMT/BST)
+#
+# +00/+01 - WET/WEST (EU DST)
+XX	+3843-00908	Europe/Lisbon	western Europe (WET/WEST)
+#
+# +00/+02 - Troll DST
+XX	-720041+0023206	Antarctica/Troll	Troll Station in Antarctica
+#
+# +01 - CET
+XX	+3647+00303	Africa/Algiers	Algeria, Tunisia (CET)
+#
+# +01 - WAT
+XX	+0627+00324	Africa/Lagos	western Africa (WAT)
+#
+# +01/+00 - IST/GMT (EU DST in reverse)
+XX	+5320-00615	Europe/Dublin	Ireland (IST/GMT)
+#
+# +01/+00 - (Morocco DST)
+XX	+3339-00735	Africa/Casablanca	Morocco
+#
+# +01/+02 - CET/CEST (EU DST)
+XX	+4852+00220	Europe/Paris	central Europe (CET/CEST)
+#
+# +02 - CAT
+XX	-2558+03235	Africa/Maputo	central Africa (CAT)
+#
+# +02 - EET
+XX	+3254+01311	Africa/Tripoli	Libya; Kaliningrad (EET)
+#
+# +02 - SAST
+XX	-2615+02800	Africa/Johannesburg	southern Africa (SAST)
+#
+# +02/+03 - EET/EEST (EU DST)
+XX	+3758+02343	Europe/Athens	eastern Europe (EET/EEST)
+#
+# +02/+03 - EET/EEST (Egypt DST)
+XX	+3003+03115	Africa/Cairo	Egypt
+#
+# +02/+03 - EET/EEST (Lebanon DST)
+XX	+3353+03530	Asia/Beirut	Lebanon
+#
+# +02/+03 - EET/EEST (Palestine DST)
+XX	+3130+03428	Asia/Gaza	Palestine
+#
+# +02/+03 - IST/IDT (Israel DST)
+XX	+314650+0351326	Asia/Jerusalem	Israel
+#
+# +03
+XX	+4101+02858	Europe/Istanbul	Near East; Belarus
+#
+# +03 - EAT
+XX	-0117+03649	Africa/Nairobi	eastern Africa (EAT)
+#
+# +03 - MSK
+XX	+554521+0373704	Europe/Moscow	Moscow (MSK)
+#
+# +03:30
+XX	+3540+05126	Asia/Tehran	Iran
+#
+# +04
+XX	+2518+05518	Asia/Dubai	Russia; Caucasus; Persian Gulf; Seychelles; Réunion
+#
+# +04:30
+XX	+3431+06912	Asia/Kabul	Afghanistan
+#
+# +05
+XX	+4120+06918	Asia/Tashkent	Russia; Kazakhstan; Tajikistan; Turkmenistan; Uzbekistan; Maldives
+#
+# +05 - PKT
+XX	+2452+06703	Asia/Karachi	Pakistan (PKT)
+#
+# +05:30
+XX	+0656+07951	Asia/Colombo	Sri Lanka
+#
+# +05:30 - IST
+XX	+2232+08822	Asia/Kolkata	India (IST)
+#
+# +05:45
+XX	+2743+08519	Asia/Kathmandu	Nepal
+#
+# +06
+XX	+2343+09025	Asia/Dhaka	Russia; Kyrgyzstan; Bhutan; Bangladesh; Chagos
+#
+# +06:30
+XX	+1647+09610	Asia/Yangon	Myanmar; Cocos
+#
+# +07
+XX	+1345+10031	Asia/Bangkok	Russia; Indochina; Christmas Island
+#
+# +07 - WIB
+XX	-0610+10648	Asia/Jakarta	Indonesia (WIB)
+#
+# +08
+XX	+0117+10351	Asia/Singapore	Russia; Brunei; Malaysia; Singapore; Concordia
+#
+# +08 - AWST
+XX	-3157+11551	Australia/Perth	Western Australia (AWST)
+#
+# +08 - CST
+XX	+3114+12128	Asia/Shanghai	China (CST)
+#
+# +08 - HKT
+XX	+2217+11409	Asia/Hong_Kong	Hong Kong (HKT)
+#
+# +08 - PHT
+XX	+143512+1205804	Asia/Manila	Philippines (PHT)
+#
+# +08 - WITA
+XX	-0507+11924	Asia/Makassar	Indonesia (WITA)
+#
+# +08:45
+XX	-3143+12852	Australia/Eucla	Eucla
+#
+# +09
+XX	+5203+11328	Asia/Chita	Russia; Palau; East Timor
+#
+# +09 - JST
+XX	+353916+1394441	Asia/Tokyo	Japan (JST); Eyre Bird Observatory
+#
+# +09 - KST
+XX	+3733+12658	Asia/Seoul	Korea (KST)
+#
+# +09 - WIT
+XX	-0232+14042	Asia/Jayapura	Indonesia (WIT)
+#
+# +09:30 - ACST
+XX	-1228+13050	Australia/Darwin	Northern Territory (ACST)
+#
+# +09:30/+10:30 - ACST/ACDT (Australia DST)
+XX	-3455+13835	Australia/Adelaide	South Australia (ACST/ACDT)
+#
+# +10
+XX	+4310+13156	Asia/Vladivostok	Russia; Yap; Chuuk; Papua New Guinea; Dumont d’Urville
+#
+# +10 - AEST
+XX	-2728+15302	Australia/Brisbane	Queensland (AEST)
+#
+# +10 - ChST
+XX	+1328+14445	Pacific/Guam	Mariana Islands (ChST)
+#
+# +10/+11 - AEST/AEDT (Australia DST)
+XX	-3352+15113	Australia/Sydney	southeast Australia (AEST/AEDT)
+#
+# +10:30/+11
+XX	-3133+15905	Australia/Lord_Howe	Lord Howe Island
+#
+# +11
+XX	-0613+15534	Pacific/Bougainville	Russia; Kosrae; Bougainville; Solomons
+#
+# +11/+12 (Australia DST)
+XX	-2903+16758	Pacific/Norfolk	Norfolk Island
+#
+# +12
+XX	+5301+15839	Asia/Kamchatka	Russia; Tuvalu; Fiji; etc.
+#
+# +12/+13 (New Zealand DST)
+XX	-3652+17446	Pacific/Auckland	New Zealand (NZST/NZDT)
+#
+# +12:45/+13:45 (Chatham DST)
+XX	-4357-17633	Pacific/Chatham	Chatham Islands
+#
+# +13
+XX	-210800-1751200	Pacific/Tongatapu	Kanton; Tokelau; Samoa (western); Tonga
+#
+# +14
+XX	+0152-15720	Pacific/Kiritimati	Kiritimati