Offset
The time difference between Dublin and Rio de Janeiro is 4 hours.
Dublin (BST) is ahead of Rio de Janeiro (BRT).
BST: UTC+1
BRT: UTC-3
Dublin is currently observing daylight saving time; Rio de Janeiro is not.
When to schedule
Business-hours overlap: 1 PM–5 PM in Dublin (9 AM–1 PM in Rio de Janeiro).
Both teams are in working hours during this window on weekdays.
Suggested time: 3:00 PM Dublin (11:00 AM Rio de Janeiro).
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.
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
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
About these zones
Dublin uses Greenwich Mean Time (GMT, or BST). To call Ireland, dial +353.
Rio de Janeiro uses Brasilia Time (BRT). To call Brazil, dial +55.
Rio de Janeiro is approximately 5,700 miles southwest of Dublin.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Dublin | Rio de Janeiro | Day |
|---|---|---|
| 12:00 am | 8:00 pm | -1 day |
| 1:00 am | 9:00 pm | -1 day |
| 2:00 am | 10:00 pm | -1 day |
| 3:00 am | 11:00 pm | -1 day |
| 4:00 am | 12:00 am | Same day |
| 5:00 am | 1:00 am | Same day |
| 6:00 am | 2:00 am | Same day |
| 7:00 am | 3:00 am | Same day |
| 8:00 am | 4:00 am | Same day |
| 9:00 am | 5:00 am | Same day |
| 10:00 am | 6:00 am | Same day |
| 11:00 am | 7:00 am | Same day |
| 12:00 pm | 8:00 am | Same day |
| 1:00 pm | 9:00 am | Same day |
| 2:00 pm | 10:00 am | Same day |
| 3:00 pm | 11:00 am | Same day |
| 4:00 pm | 12:00 pm | Same day |
| 5:00 pm | 1:00 pm | Same day |
| 6:00 pm | 2:00 pm | Same day |
| 7:00 pm | 3:00 pm | Same day |
| 8:00 pm | 4:00 pm | Same day |
| 9:00 pm | 5:00 pm | Same day |
| 10:00 pm | 6:00 pm | Same day |
| 11:00 pm | 7:00 pm | Same 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
- 5:00 AM
- Sunset
- 9:50 PM
- Day length
- 16h 50m
- Sunrise
- 6:30 AM
- Sunset
- 5:16 PM
- Day length
- 10h 46m
Daylight overlap: 10h 46m — 10:30 AM–9:16 PM in Dublin (6:30 AM–5:16 PM in Rio de Janeiro). 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 Greenwich Mean Time
- DUB
Airports in Brasilia Time
- CGH
- GRU
- GIG
- SDU
- CNF
- BSB
- CWB
- GYN
- POA
Related conversions
Common conversions
- What is 9:00 am Dublin in Rio de Janeiro?
- 9:00 am Dublin is 5:00 am Rio de Janeiro.
- What is 12:00 pm Dublin in Rio de Janeiro?
- 12:00 pm Dublin is 8:00 am Rio de Janeiro.
- What is 12:30 pm Dublin in Rio de Janeiro?
- 12:30 pm Dublin is 8:30 am Rio de Janeiro.
- What is 2:00 pm Dublin in Rio de Janeiro?
- 2:00 pm Dublin is 10:00 am Rio de Janeiro.
- What is 5:00 pm Dublin in Rio de Janeiro?
- 5:00 pm Dublin is 1:00 pm Rio de Janeiro.
- What is 11:30 pm Dublin in Rio de Janeiro?
- 11:30 pm Dublin is 7:30 pm Rio de Janeiro.