| CITY | LOCAL TIME | Difference | Coming up |
|---|---|---|---|
| London United Kingdom | 01:00Thu | +5h | Becomes +4h on 25 Oct |
| Berlin Germany | 02:00Thu | +6h | Becomes +5h on 25 Oct |
| Dubai UAE | 04:00Thu | +8h | |
| Tokyo Japan | 09:00Thu | +13h | |
| Sydney Australia | 10:00Thu | +14h | Becomes +15h on 4 Oct |
| New York United States | 20:00 | ±0h | Becomes −1h on 1 Nov |
| Los Angeles United States | 17:00 | −3h | Becomes −4h on 1 Nov |
Gustavia, Saint Barthélemy runs on UTC−4. This time zone stays fixed year-round at UTC−4 — daylight saving time is not observed. Gustavia and New York currently share the same clock. Standard 9-to-6 working hours overlap for about 9 hours a day with New York. A good time to connect: 09:00–18:00 in Gustavia lines up with 09:00–18:00 in New York. The time difference between Gustavia and London is 5 hours. Standard 9-to-6 working hours overlap for about 4 hours a day with London. A good time to connect: 09:00–13:00 in Gustavia lines up with 14:00–18:00 in London. The time difference between Gustavia and Tokyo is 13 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 Caracas, La Paz, Santo Domingo. Keeping these offsets in mind makes it easier to schedule calls or travel to and from Gustavia.
Gustavia (Saint Barthélemy) is home to roughly 3K people. Today brings about 12.0 hours of daylight: sunrise at 06:01, sunset at 18:01. This time zone stays fixed year-round at UTC−4 — daylight saving time is not observed. It sits in the Northern Hemisphere, about 18° north of the equator. Traffic drives on the right.
Flag
Saint Barthélemy
Capital
Gustavia 👑
Continent
North America
Time Zone
AST · America/St_Barthelemy
Coordinates
17.90°N, 62.85°W
Currency
EUR (€)
Calling Code
+590
Driving Side
Right
Hemisphere
Northern
Language
French
Measurement System
Metric
Did You Know?
Saint Barthélemy was Swedish from 1784 to 1878, which is why its capital is named for King Gustav III. France sold it to Sweden for trading rights in Gothenburg and bought it back 94 years later.
The clock: Gustavia keeps UTC−4. Its airport runway is about 650 metres and approached over a hill, which pilots need a specific certification to fly.
Gustavia lies at 62.9°W. Its time zone, UTC−4, is built around the 60°W meridian. The 2.9° gap between them means the clock runs roughly 11 minutes ahead of the sun: solar noon arrives at about 12:11 rather than 12:00. The zone holds UTC−4 all year — there is no daylight saving here.
The longest day of 2026 is 22 June, with 13h 12m of daylight. The shortest is 22 December, with 11h 3m. The swing between them is 2h 9m. Inside the tropics the day length stays within a narrow band all year.
The earliest sunrise and the latest sunset do not land on the longest day. In Gustavia the sun comes up earliest on 5 June at 05:35, while the latest sunset waits until 8 July at 18:51. 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 Gustavia that civil twilight runs about 22 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 Gustavia, Saint Barthélemy is America/St_Barthelemy with a current UTC offset of UTC−4.
Gustavia has an estimated population of 3K and is located at coordinates 17.90°N, 62.85°W. It is the capital city of Saint Barthélemy.
Gustavia gets 13h 12m of daylight on its longest day and 11h 3m on its shortest, averaging 12h 8m a day across the year.
Solar noon in Gustavia falls at about 12:11 on UTC−4 standard time, because the city sits 2.9° from the meridian its zone is built on.
A French Island With a Swedish Name: Saint Barthélemy was Swedish from 1784 to 1878, which is why its capital is named for King Gustav III. France sold it to Sweden for trading rights in Gothenburg and bought it back 94 years later.