Cambodia Christmas I Laos Thailand Vietnam (northern) Zone NAME STDOFF RULES FORMAT [UNTIL]
Asia/Bangkok
Time zone identifier: Asia/Bangkok
Current civil offset: +07:00 (+07)
Current DST state: Observing Standard Time
First standard time adoption: Adopted on 1879-12-31
Local Mean Time (LMT): +06:42:04 based on geographic meridian
Total recorded transitions: 2 transitions across 2 distinct offsets
Associated countries: CX, KH, LA, TH, VN
Aliases (Link targets): Asia/Phnom_Penh, Asia/Vientiane, Indian/Christmas
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Historical Offset Step Chart (1880 to Present)
Text summary: Asia/Bangkok shifted between 2 distinct offsets from 1879-12-31 through the modern era.
Complete Transition History (2 Transitions)
| UTC Instant | Local Wall Time | Shift | Abbreviation | DST | Effect |
|---|---|---|---|---|---|
1879-12-31T17:17:56Z | 1880-01-01 00:00:00 | +06:42:04 → +06:42:04 | BMT | No | offset-only |
1920-03-31T17:17:56Z | 1920-04-01 00:17:56 | +06:42:04 → +07:00 | +07 | No | gap |
Notes from the Maintainers
Years on Record
Methodology Note: The 1970 Rule
tzdb guarantees accuracy for timestamps from 1970 onwards. Transitions prior to 1970 represent best-effort historical reconstructions.
asia(Lines 4107 to 4113)