Roseau runs on UTC−4 (AST) every day of the year, with no daylight saving time.
Roseau and your time
Roseau at a glance
| Country | Dominica |
|---|---|
| Region | Saint George Parish |
| Capital of | Dominica |
| Time zone | America/Dominica |
| Abbreviation now | AST |
| UTC offset now | UTC−4 |
| Daylight saving time | Not observed |
| Coordinates | 15.30° N, 61.39° W |
Which time zone Roseau uses
Local time in Roseau is UTC−4 year round, under the America/Dominica rules. Clocks have not changed for the seasons here since at least 1970.
Roseau is the capital, and all of Dominica keeps this time.
Clock changes in Roseau, 2026 and 2027
No clock changes are scheduled in Roseau for 2026 or 2027.
Time difference between Roseau and other cities
When it is 9:00 AM in Roseau, it is 1:00 PM in London, 12:00 AM (next day) in Sydney and 5:00 AM in Los Angeles.
| City | Time now | Difference now | In January | In July | Shared office hours |
|---|---|---|---|---|---|
| New York (United States) | --:-- | 1 h behind | 1 h behind | Same time | 7 h |
| Los Angeles (United States) | --:-- | 4 h behind | 4 h behind | 3 h behind | 4 h |
| London (United Kingdom) | --:-- | 4 h ahead | 4 h ahead | 5 h ahead | 4 h |
| Paris (France) | --:-- | 5 h ahead | 5 h ahead | 6 h ahead | 3 h |
| Dubai (United Arab Emirates) | --:-- | 8 h ahead | 8 h ahead | 8 h ahead | None |
| Mumbai (India) | --:-- | 9 h 30 min ahead | 9 h 30 min ahead | 9 h 30 min ahead | None |
| Singapore | --:-- | 12 h ahead | 12 h ahead | 12 h ahead | None |
| Tokyo (Japan) | --:-- | 13 h ahead | 13 h ahead | 13 h ahead | None |
| Sydney (Australia) | --:-- | 15 h ahead | 15 h ahead | 14 h ahead | None |
| UTC | --:-- | 4 h ahead | 4 h ahead | 4 h ahead | 4 h |
Because Roseau keeps one offset all year, any change in the gap comes from the other city’s daylight saving time. Compare the January and July columns.
Shared office hours counts the time when the clock reads between 9 AM and 5 PM in both cities on the same day.
Sunrise, sunset and day length in Roseau
Today
| Sunrise | --:-- |
|---|---|
| Sunset | --:-- |
| Day length | -- |
| Solar noon | --:-- |
Day length barely moves in Roseau, from 11 hours 13 minutes to 13 hours 2 minutes. Sunrise and sunset shift by less than an hour across the year.
Daylight through the year in Roseau
| Date | Sunrise | Sunset | Day length | |
|---|---|---|---|---|
| March equinox | March 20 | 6:10 AM | 6:16 PM | 12 h 7 min |
| June solstice | June 21 | 5:36 AM | 6:39 PM | 13 h 2 min |
| September equinox | September 22 | 5:55 AM | 6:02 PM | 12 h 7 min |
| December solstice | December 21 | 6:27 AM | 5:40 PM | 11 h 13 min |
Clock time and sun time in Roseau
Roseau lies close to the centre of its time zone, so the sun is highest at about 12:05 PM on standard time, close to clock noon.
Places close to Roseau
All the places listed below keep the same time as Roseau.
| City | Distance | Time now | Difference |
|---|---|---|---|
| Fort-de-France (Martinique) | 85 km (53 mi) | --:-- | Same time |
| Basse-Terre (Guadeloupe) | 86 km (53 mi) | --:-- | Same time |
| Les Abymes (Guadeloupe) | 109 km (68 mi) | --:-- | Same time |
| Gros Islet (St. Lucia) | 145 km (90 mi) | --:-- | Same time |
| Brades (Montserrat) | 188 km (117 mi) | --:-- | Same time |
| St John's (Antigua and Barbuda) | 208 km (129 mi) | --:-- | Same time |
| Kingstown (St. Vincent and Grenadines) | 239 km (149 mi) | --:-- | Same time |
| Basseterre (St. Kitts and Nevis) | 264 km (164 mi) | --:-- | Same time |
Same time now, different rules
These places read the same time as Roseau today but follow different rules, so they can drift apart when clocks change.
Plan around the time in Roseau
- Convert a time to or from Roseau: pick a date and time and see it in every city on your list.
- Add Roseau to your world clock to keep it next to your own time.
- Find a meeting time that falls inside office hours in Roseau and the other cities you work with.
- Open a full-screen clock for your own time zone.
Frequently asked questions
What time zone is Roseau in?
Roseau uses the America/Dominica time zone, which is UTC−4 (AST) all year.
Does Roseau use daylight saving time?
No. Roseau stays on UTC−4 all year, so the time difference to places without daylight saving time never changes.
What is the time difference between Roseau and London?
Roseau is 4 hours behind London in January and 5 hours behind London in July, because London moves its clocks for daylight saving time and Roseau does not.
How long is the longest day in Roseau?
About 13 hours 2 minutes, around the June solstice. The shortest day, around the December solstice, has about 11 hours 13 minutes of daylight.
Time zone rules: IANA tz database, version 2026e. Place names and coordinates: GeoNames. Sunrise and sunset are calculated from the coordinates and can differ by a minute or two from local almanacs.