Offset
The time difference between Santo Domingo and Greenwich Mean Time is 5 hours.
Santo Domingo (AST) is behind Greenwich Mean Time (BST).
AST: UTC-4
BST: UTC+1
Greenwich Mean Time is currently observing daylight saving time; Santo Domingo is not.
When to schedule
Business-hours overlap: 9 AM–12 PM in Santo Domingo (2 PM–5 PM in Greenwich Mean Time).
Both teams are in working hours during this window on weekdays.
Suggested time: 10:00 AM Santo Domingo (3:00 PM Greenwich Mean Time).
This window may shift by an hour during daylight saving time.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
Dominican Republic
- New Year's DayThu, Jan 1
- Day of KingsTue, Jan 6
- Our Lady of AltagraciaWed, Jan 21
- Duarte's BirthdayMon, Jan 26
- Independence DayFri, Feb 27
- Good FridayFri, Apr 3
- Labour DayFri, May 1
- Mother's DayThu, May 28
- Corpus ChristiThu, Jun 4
- Restoration DaySun, Aug 16
- Our Lady of MercyThu, Sep 24
- Constitution DayFri, Nov 6
- Christmas DayFri, Dec 25
United Kingdom
- Good FridayFri, Apr 3
- Early May Bank HolidayMon, May 4
- Spring Bank HolidayMon, May 25
- Christmas DayFri, Dec 25
- St. Stephen's DayMon, Dec 28
About these zones
Santo Domingo uses Atlantic Standard Time. To call Dominican Republic, dial +1-809 and 1-829.
Greenwich Mean Time is also known as GMT, or BST. To call United Kingdom, dial +44.
Greenwich Mean Time is approximately 4,350 miles northeast of Santo Domingo.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Santo Domingo | GMT | Day |
|---|---|---|
| 12:00 am | 5:00 am | Same day |
| 1:00 am | 6:00 am | Same day |
| 2:00 am | 7:00 am | Same day |
| 3:00 am | 8:00 am | Same day |
| 4:00 am | 9:00 am | Same day |
| 5:00 am | 10:00 am | Same day |
| 6:00 am | 11:00 am | Same day |
| 7:00 am | 12:00 pm | Same day |
| 8:00 am | 1:00 pm | Same day |
| 9:00 am | 2:00 pm | Same day |
| 10:00 am | 3:00 pm | Same day |
| 11:00 am | 4:00 pm | Same day |
| 12:00 pm | 5:00 pm | Same day |
| 1:00 pm | 6:00 pm | Same day |
| 2:00 pm | 7:00 pm | Same day |
| 3:00 pm | 8:00 pm | Same day |
| 4:00 pm | 9:00 pm | Same day |
| 5:00 pm | 10:00 pm | Same day |
| 6:00 pm | 11:00 pm | Same day |
| 7:00 pm | 12:00 am | +1 day |
| 8:00 pm | 1:00 am | +1 day |
| 9:00 pm | 2:00 am | +1 day |
| 10:00 pm | 3:00 am | +1 day |
| 11:00 pm | 4:00 am | +1 day |
Daylight saving time
Greenwich Mean Time observes daylight saving time; Santo Domingo does not. The offset between the two zones changes when Greenwich Mean Time transitions: on Sunday, October 25, 2026, clocks fall back from BST to GMT.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 6:27 AM
- Sunset
- 6:51 PM
- Day length
- 12h 24m
- Sunrise
- 6:23 AM
- Sunset
- 7:36 PM
- Day length
- 13h 13m
Cities in these zones
Cities in Greenwich Mean Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Atlantic Standard Time
- JBQ
- SDQ
Airports in Greenwich Mean Time
- LCY
- LGW
- LHR
- LTN
- STN
- BHX
- EMA
- GLA
- PIK
- LBA
Related conversions
Common conversions
- What is 9:00 am Santo Domingo in GMT?
- 9:00 am Santo Domingo is 2:00 pm GMT.
- What is 12:00 pm Santo Domingo in GMT?
- 12:00 pm Santo Domingo is 5:00 pm GMT.
- What is 12:30 pm Santo Domingo in GMT?
- 12:30 pm Santo Domingo is 5:30 pm GMT.
- What is 2:00 pm Santo Domingo in GMT?
- 2:00 pm Santo Domingo is 7:00 pm GMT.
- What is 5:00 pm Santo Domingo in GMT?
- 5:00 pm Santo Domingo is 10:00 pm GMT.
- What is 11:30 pm Santo Domingo in GMT?
- 11:30 pm Santo Domingo is 4:30 am GMT, the next day.