Time in Sao Tome
Sao Tome and Principe
--:--
- Sunrise
- Sunset
- Daylight
The basics
- Time zone
- Greenwich Mean Time (GMT)
- IANA zone
Africa/Sao_Tome- UTC offset
- UTC+00:00 all year
- Against Dublin
- 1 hour behind
- Daylight saving
- Not observed
- Longest day
- 12h 09m of daylight, around the June solstice
- Shortest day
- 12h 07m of daylight
- Coordinates
- 0.33°N, 6.73°E
When the gap with Ireland changes
Ireland and Sao Tome do not change their clocks on the same date, so the difference between them is not fixed. It shifts like this:
| From | Sao Tome is |
|---|---|
| Now | 1 hour behind Ireland |
| Sunday 25 October 2026 | the same as Ireland |
| Sunday 28 March 2027 | 1 hour behind Ireland |
| Sunday 31 October 2027 | the same as Ireland |
| Sunday 26 March 2028 | 1 hour behind Ireland |
| Sunday 29 October 2028 | the same as Ireland |
Questions
What time is it in Sao Tome right now?
Sao Tome keeps Greenwich Mean Time (UTC+00:00). Sao Tome is 1 hour behind Ireland. The clock at the top of this page shows the current time, read live from your device.
How many hours ahead is Sao Tome from Ireland?
Sao Tome is currently 1 hour behind Ireland. That changes to 0 hours behind on Sunday 25 October 2026, when one of the two countries changes its clocks.
Does Sao Tome change its clocks?
No. Sao Tome stays on Greenwich Mean Time (UTC+00:00) all year and does not observe daylight saving time.