Dominica · AST
Mon, 14 Sept 2026
Timezone Guide
Roseau, Dominica runs on UTC−4. This time zone stays fixed year-round at UTC−4 — daylight saving time is not observed. Roseau 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 Roseau lines up with 09:00–18:00 in New York. There is a 5-hour difference between Roseau 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 Roseau lines up with 14:00–18:00 in London. There is a 13-hour difference between Roseau 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 Roseau.
Practical Info
Roseau (Dominica) is home to roughly 15K people. Today brings about 13.1 hours of daylight: sunrise at 05:36, sunset at 18:42. This time zone stays fixed year-round at UTC−4 — daylight saving time is not observed. It sits in the Northern Hemisphere, about 15° north of the equator. Traffic drives on the left.
Flag
Dominica
Capital
Roseau 👑
Continent
North America
Time Zone
AST · America/Dominica
Coordinates
15.30°N, 61.39°W
Currency
XCD ($)
Calling Code
+1
Driving Side
Left
Hemisphere
Northern
Language
English
Measurement System
Metric
Did You Know?
Dominica's Boiling Lake is a flooded fumarole about 60 metres across whose grey water bubbles at the centre at around 90°C. Reaching it is a six-hour hike through the Valley of Desolation.
The clock: Roseau keeps UTC−4. Dominica has nine active volcanoes, the highest density of any island on Earth.
Annual Daylight
Working Hours
2h overlap