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In São Tomé and Príncipe, there is only one time zone in use: Greenwich Mean Time, GMT (UTC+00). Time in São Tomé and Príncipe does not change because it does not observe Daylight Saving Time.
For comparing the current time in São Tomé and Príncipe and United Kingdom or any other country combination, visit time comparison. For an introduction to UTC and world time, read UTC by country. Time changes in São Tomé and Príncipe are shown below by city, state or region.
| Regions | Standard Time | Daylight Saving Time | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Time zone | 2025 | 2026 | 2027 | Time zone | 2025 | 2026 | 2027 | |||
| Greenwich Mean Time GMT (UTC+00) | UTC+00 all year long | No Daylight Saving Time | |||||||
The information in this page comes from data published in the Time Zone Database managed by the Internet Assigned Numbers Authority (IANA).
| Year | Time zone Abbreviation | UTC Offset | Time zone Name | Daylight Saving Time | Begins (local time) |
|---|---|---|---|---|---|
| 2019 | GMT | UTC+00 | Greenwich Mean Time | no | Tuesday, January 1 2019, 02:00 AM |
| 2018 | WAT | UTC+01 | no | Monday, January 1 2018, 01:00 AM | |
| 1912 | GMT | UTC+00 | Greenwich Mean Time | no | Monday, January 1 1912, 11:23 PM |
| 1883 | LMT | UTC-00:36:45 | no | Monday, December 31 1883, 12:00 AM |