| CITY | LOCAL TIME | Difference | Coming up |
|---|---|---|---|
| London United Kingdom | 01:00 | +1h | Becomes ±0h on 25 Oct |
| Berlin Germany | 02:00 | +2h | Becomes +1h on 25 Oct |
| Dubai UAE | 04:00 | +4h | |
| Tokyo Japan | 09:00 | +9h | |
| Sydney Australia | 10:00 | +10h | Becomes +11h on 4 Oct |
| New York United States | 20:00Wed | −4h | Becomes −5h on 1 Nov |
| Los Angeles United States | 17:00Wed | −7h | Becomes −8h on 1 Nov |
Same timezone as your location.
São Tomé, São Tomé and Príncipe runs on UTC+0. This time zone stays fixed year-round at UTC+0 — daylight saving time is not observed. The time difference between São Tomé and New York is 4 hours. Standard 9-to-6 working hours overlap for about 5 hours a day with New York. A good time to connect: 13:00–18:00 in São Tomé lines up with 09:00–14:00 in New York. The time difference between São Tomé and London is 1 hour. Standard 9-to-6 working hours overlap for about 8 hours a day with London. A good time to connect: 09:00–17:00 in São Tomé lines up with 10:00–18:00 in London. The time difference between São Tomé and Tokyo is 9 hours. Standard working hours don't overlap at all with Tokyo, so meetings need an early or late slot on one side. This timezone is also shared with cities such as Reykjavík, Casablanca, Accra. Keeping these offsets in mind makes it easier to schedule calls or travel to and from São Tomé.
São Tomé (São Tomé and Príncipe) is home to roughly 72K people. Today brings about 12.1 hours of daylight: sunrise at 05:19, sunset at 17:26. This time zone stays fixed year-round at UTC+0 — daylight saving time is not observed. It sits in the Northern Hemisphere, about 0° north of the equator. Traffic drives on the right.
Flag
São Tomé and Príncipe
Capital
São Tomé 👑
Continent
Africa
Time Zone
GMT · Africa/Sao_Tome
Coordinates
0.33°N, 6.73°E
Currency
STN (Db)
Calling Code
+239
Driving Side
Right
Hemisphere
Northern
Language
Portuguese
Measurement System
Metric
Did You Know?
São Tomé and Príncipe was for a period in the early 20th century the world's largest cocoa producer, on islands totalling about 960 square kilometres. The plantation houses, the roças, still stand in the forest.
The clock: São Tomé keeps UTC+0 and sits almost on the equator, some 750 km from the 0,0 point of the coordinate system.
São Tomé lies at 6.7°E. Its time zone, UTC+0, is built around the prime meridian (0°). The 6.7° gap between them means the clock runs roughly 27 minutes behind the sun: solar noon arrives at about 11:33 rather than 12:00. The zone holds UTC+0 all year — there is no daylight saving here.
The longest day of 2026 is 22 June, with 12h 8m of daylight. The shortest is 27 December, with 12h 6m. The swing between them is 2 minutes. Within a few degrees of the equator the length of the day barely moves all year.
The earliest sunrise and the latest sunset do not land on the longest day. In São Tomé the sun comes up earliest on 1 November at 05:14, while the latest sunset waits until 14 February at 17:50. The equation of time is what separates them: the Earth's elliptical orbit and axial tilt move solar noon back and forth by several minutes over the year.
The sky stays usably light for a while after the sun goes down. In São Tomé that civil twilight runs about 21 minutes at the equinox.
Every figure in this section is computed from the city's own latitude, longitude and IANA time zone using NOAA solar algorithms (Spencer, 1971), accurate to about ±2 arcminutes below 65° latitude.
The official timezone for São Tomé, São Tomé and Príncipe is Africa/Sao_Tome with a current UTC offset of UTC+0.
São Tomé has an estimated population of 72K and is located at coordinates 0.33°N, 6.73°E. It is the capital city of São Tomé and Príncipe.
São Tomé gets 12h 8m of daylight on its longest day and 12h 6m on its shortest, averaging 12h 7m a day across the year.
Solar noon in São Tomé falls at about 11:33 on UTC+0 standard time, because the city sits 6.7° from the meridian its zone is built on.
Cocoa on a Volcano: São Tomé and Príncipe was for a period in the early 20th century the world's largest cocoa producer, on islands totalling about 960 square kilometres. The plantation houses, the roças, still stand in the forest.