Observed arrival · 2026-10-30
Time Zone History: a ledger of clock changes
A reference for time-zone history across 312 IANA zones, with standard-time changes, daylight-saving periods, and clock-change dates through 2028.
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- Researchers and travelers checking local clock changes
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- Its overview groups one thin row per zone by current standard time, with color indicating seasonal changes or shifts from today's standard time.
Field notes
The overview is arranged as one thin row per zone, grouped from UTC+14 to UTC−11. Its legend separates seasonal clock changes from years when a zone's standard time was ahead of or behind today's. The page identifies the data source as IANA tz database release 2026f and lists six zones with standard-time changes in 2026.
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Editorial observations of this landing page, not a rating.
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