Martinique Zone NAME STDOFF RULES FORMAT [UNTIL]
America/Martinique
Time zone identifier: America/Martinique
Current civil offset: -04:00 (AST)
Current DST state: Observing Standard Time
First standard time adoption: Adopted on 1890-01-01
Local Mean Time (LMT): -04:04:20 based on geographic meridian
Total recorded transitions: 4 transitions across 3 distinct offsets
Associated countries: MQ
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Historical Offset Step Chart (1880 to Present)
Text summary: America/Martinique shifted between 3 distinct offsets from 1890-01-01 through the modern era.
Complete Transition History (4 Transitions)
| UTC Instant | Local Wall Time | Shift | Abbreviation | DST | Effect |
|---|---|---|---|---|---|
1890-01-01T04:04:20Z | 1890-01-01 00:00:00 | -04:04:20 → -04:04:20 | FFMT | No | offset-only |
1911-05-01T04:04:20Z | 1911-05-01 00:04:20 | -04:04:20 → -04:00 | AST | No | gap |
1980-04-06T04:00:00Z | 1980-04-06 01:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1980-09-28T03:00:00Z | 1980-09-27 23:00:00 | -03:00 → -04:00 | AST | No | overlap |
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.
northamerica(Lines 3727 to 3729)