Chad Fort-Lamy was renamed to N’Djamena on 1973-04-06. Zone NAME STDOFF RULES FORMAT [UNTIL]
Africa/Ndjamena
Time zone identifier: Africa/Ndjamena
Current civil offset: +01:00 (WAT)
Current DST state: Observing Standard Time
First standard time adoption: Adopted on 1911-12-31
Local Mean Time (LMT): +01:00:12 based on geographic meridian
Total recorded transitions: 3 transitions across 3 distinct offsets
Associated countries: TD
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Historical Offset Step Chart (1880 to Present)
Text summary: Africa/Ndjamena shifted between 3 distinct offsets from 1911-12-31 through the modern era.
Complete Transition History (3 Transitions)
| UTC Instant | Local Wall Time | Shift | Abbreviation | DST | Effect |
|---|---|---|---|---|---|
1911-12-31T22:59:48Z | 1911-12-31 23:59:48 | +01:00:12 → +01:00 | WAT | No | overlap |
1979-10-13T23:00:00Z | 1979-10-14 01:00:00 | +01:00 → +02:00 | WAST | Yes | gap |
1980-03-07T22:00:00Z | 1980-03-07 23:00:00 | +02:00 → +01:00 | WAT | 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.
africa(Lines 116 to 119)