Africa · Western Africa · Dependency
Current time in Saint Helena, Ascension and Tristan da Cunha
A single time zone at null.
Sunday, May 31, 2026
About Saint Helena, Ascension and Tristan da Cunha's time
A single time zone.
Saint Helena, Ascension and Tristan da Cunha uses a single timezone — Atlantic/St_Helena — which stays on GMT year-round with no daylight saving adjustments, making timekeeping straightforward across the territory’s remote islands.
Major cities
Cities of Saint Helena, Ascension and Tristan da Cunha.
Did you know?
Things about Saint Helena, Ascension and Tristan da Cunha's time.
Despite being spread across distant islands in the South Atlantic, the entire territory observes the same GMT offset. Because there’s no daylight saving time, clocks never change — a small plus for such isolated communities.
Saint Helena is famous as the place of Napoleon’s final exile (he died there in 1821), and its timezone has been aligned with GMT for well over a century, simplifying communication with Europe and shipping routes. Ascension Island and Tristan da Cunha, though far apart, follow the same time, reinforcing a shared administrative rhythm despite very different local solar times.
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 timezone is Saint Helena, Ascension and Tristan da Cunha in?
- The entire territory uses Atlantic/St_Helena, which is GMT (UTC+0) with no daylight saving time.
- Do they observe daylight saving time?
- No. The islands remain on GMT all year round, so there are no clock changes.
- Is the time the same on all the islands?
- Yes. Saint Helena, Ascension Island, and Tristan da Cunha all keep GMT, despite being thousands of kilometers apart.
- How does this affect travel and communication?
- With no time differences and no DST, scheduling across the islands is very simple once travel connections allow it.
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