Antarctica/Mawson
Time zone identifier: Antarctica/Mawson
Current civil offset: +05:00 (+05)
Current DST state: Observing Standard Time
First standard time adoption: Adopted on 1954-02-13
Total recorded transitions: 2 transitions across 3 distinct offsets
Associated countries: AQ
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Historical Offset Step Chart (1880 to Present)
Text summary: Antarctica/Mawson shifted between 3 distinct offsets from 1954-02-13 through the modern era.
Complete Transition History (2 Transitions)
| UTC Instant | Local Wall Time | Shift | Abbreviation | DST | Effect |
|---|---|---|---|---|---|
1954-02-13T00:00:00Z | 1954-02-13 06:00:00 | +00:00 → +06:00 | +06 | No | gap |
2009-10-17T20:00:00Z | 2009-10-18 01:00:00 | +06:00 → +05:00 | +05 | No | overlap |
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.