Offset
The time difference between Rio de Janeiro and Dublin is 4 hours.
Rio de Janeiro (BRT) is behind Dublin (BST).
BRT: UTC-3
BST: UTC+1
Dublin is currently observing daylight saving time; Rio de Janeiro is not.
When to schedule
Business-hours overlap: 9 AM–1 PM in Rio de Janeiro (1 PM–5 PM in Dublin).
Both teams are in working hours during this window on weekdays.
Suggested time: 11:00 AM Rio de Janeiro (3:00 PM Dublin).
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.
Brazil
- New Year's DayThu, Jan 1
- CarnivalMon, Feb 16
- CarnivalTue, Feb 17
- Good FridayFri, Apr 3
- Easter SundaySun, Apr 5
- TiradentesTue, Apr 21
- Labour DayFri, May 1
- Corpus ChristiThu, Jun 4
- Independence DayMon, Sep 7
- Our Lady of AparecidaMon, Oct 12
- All Souls' DayMon, Nov 2
- Republic Proclamation DaySun, Nov 15
- Black Awareness DayFri, Nov 20
- Christmas DayFri, Dec 25
Ireland
- New Year's DayThu, Jan 1
- Saint Brigid's DayMon, Feb 2
- Saint Patrick's DayTue, Mar 17
- Good FridayFri, Apr 3
- Easter MondayMon, Apr 6
- May DayMon, May 4
- June HolidayMon, Jun 1
- August HolidayMon, Aug 3
- October HolidayMon, Oct 26
- Christmas DayFri, Dec 25
- St. Stephen's DaySat, Dec 26
About these zones
Rio de Janeiro uses Brasilia Time (BRT). To call Brazil, dial +55.
Dublin uses Greenwich Mean Time (GMT, or BST). To call Ireland, dial +353.
Dublin is approximately 5,700 miles north of Rio de Janeiro.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Rio de Janeiro | Dublin | Day |
|---|---|---|
| 12:00 am | 4:00 am | Same day |
| 1:00 am | 5:00 am | Same day |
| 2:00 am | 6:00 am | Same day |
| 3:00 am | 7:00 am | Same day |
| 4:00 am | 8:00 am | Same day |
| 5:00 am | 9:00 am | Same day |
| 6:00 am | 10:00 am | Same day |
| 7:00 am | 11:00 am | Same day |
| 8:00 am | 12:00 pm | Same day |
| 9:00 am | 1:00 pm | Same day |
| 10:00 am | 2:00 pm | Same day |
| 11:00 am | 3:00 pm | Same day |
| 12:00 pm | 4:00 pm | Same day |
| 1:00 pm | 5:00 pm | Same day |
| 2:00 pm | 6:00 pm | Same day |
| 3:00 pm | 7:00 pm | Same day |
| 4:00 pm | 8:00 pm | Same day |
| 5:00 pm | 9:00 pm | Same day |
| 6:00 pm | 10:00 pm | Same day |
| 7:00 pm | 11:00 pm | Same day |
| 8:00 pm | 12:00 am | +1 day |
| 9:00 pm | 1:00 am | +1 day |
| 10:00 pm | 2:00 am | +1 day |
| 11:00 pm | 3:00 am | +1 day |
Daylight saving time
Dublin observes daylight saving time; Rio de Janeiro does not. The offset between the two zones changes when Dublin 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
- 6:30 AM
- Sunset
- 5:16 PM
- Day length
- 10h 46m
- Sunrise
- 5:00 AM
- Sunset
- 9:50 PM
- Day length
- 16h 50m
Daylight overlap: 10h 46m — 6:30 AM–5:16 PM in Rio de Janeiro (10:30 AM–9:16 PM in Dublin). Both locations are in daylight during this window.
Cities in these zones
Other cities in Brasilia Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Brasilia Time
- CGH
- GRU
- GIG
- SDU
- CNF
- BSB
- CWB
- GYN
- POA
Airports in Greenwich Mean Time
- DUB
Related conversions
Common conversions
- What is 9:00 am Rio de Janeiro in Dublin?
- 9:00 am Rio de Janeiro is 1:00 pm Dublin.
- What is 12:00 pm Rio de Janeiro in Dublin?
- 12:00 pm Rio de Janeiro is 4:00 pm Dublin.
- What is 12:30 pm Rio de Janeiro in Dublin?
- 12:30 pm Rio de Janeiro is 4:30 pm Dublin.
- What is 2:00 pm Rio de Janeiro in Dublin?
- 2:00 pm Rio de Janeiro is 6:00 pm Dublin.
- What is 5:00 pm Rio de Janeiro in Dublin?
- 5:00 pm Rio de Janeiro is 9:00 pm Dublin.
- What is 11:30 pm Rio de Janeiro in Dublin?
- 11:30 pm Rio de Janeiro is 3:30 am Dublin, the next day.