Africa · Western Africa · Dependency
Current time in Saint Helena, Ascension and Tristan da Cunha
A single time zone at null.
Wednesday, October 14, 2026
About Saint Helena, Ascension and Tristan da Cunha's time
A single time zone.
Saint Helena, Ascension and Tristan da Cunha operates on a single time zone, Greenwich Mean Time (GMT, UTC+00:00), with no daylight saving time.
Major cities
Cities of Saint Helena, Ascension and Tristan da Cunha.
History
How Saint Helena, Ascension and Tristan da Cunha keeps time.
Saint Helena kept Jamestown Mean Time (about 23 minutes behind Greenwich) until 1951, when it adopted Greenwich Mean Time (UTC+00:00).
The territory kept consistent time standards without daylight saving time transitions, maintaining straightforward coordination with international shipping and communication networks.
Did you know?
Things about Saint Helena, Ascension and Tristan da Cunha's time.
Being a remote archipelago in the South Atlantic, the consistent GMT offset serves as a practical anchor for administrative operations across the islands, with no complications from daylight saving shifts.
Convert
Saint Helena, Ascension and Tristan da Cunha to the world's clocks.
Frequently asked questions
Common questions about Saint Helena, Ascension and Tristan da Cunha's time zone, daylight saving rules, and how to handle it in software. Can't find what you need? Email [email protected].
- What time zone is Saint Helena, Ascension and Tristan da Cunha in?
- The territory uses Greenwich Mean Time (GMT, UTC+00:00) as its single time zone.
- Does Saint Helena observe daylight saving time?
- No, Saint Helena, Ascension and Tristan da Cunha remains on GMT year-round.
- How many time zones does Saint Helena have?
- There is one time zone across the entire territory: Greenwich Mean Time (GMT, UTC+00:00).
Source: IANA tzdb2026d · Reviewed
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