Saint Barthélemy · AST
Mon, 14 Sept 2026
Timezone Guide
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. There is a 5-hour difference between Gustavia and London. 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. There is a 13-hour difference between Gustavia and Tokyo. 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 Toronto, Caracas, Havana. Keeping these offsets in mind makes it easier to schedule calls or travel to and from Gustavia.
Practical Info
Gustavia (Saint Barthélemy) is home to roughly 3K people. Today brings about 13.2 hours of daylight: sunrise at 05:36, sunset at 18:48. 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.
Annual Daylight
Working Hours
2h overlap