Dublin to Rio das Ostras: time difference
Rio das Ostras is 3 h behind Dublin. Live clocks for both, the working hours they share, and how each one sits against your own time.
−3 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Dublin 09:06 9:06 AM Rio das Ostras 06:06 6:06 AM You –:–
09:06 9:06 AM
Greenwich Mean Time · UTC+0
☀️ 07:33 · 🌙 16:45
06:06 6:06 AM
Brasilia Standard Time · UTC-3
☀️ 05:01 · 🌙 18:03
·
−3 h
Rio das Ostras is 3 h behind Dublin.
When you, Dublin and Rio das Ostras are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇮🇪 Dublin
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇧🇷 Rio das Ostras
21 9 PM 22 10 PM 23 11 PM 0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
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Time zones side by side
| Detail | 🇮🇪 Dublin | 🇧🇷 Rio das Ostras |
|---|---|---|
| Local time | 09:06 | 06:06 |
| Local date | Friday, November 6, 2026 | Friday, November 6, 2026 |
| Time zone | Greenwich Mean Time | Brasilia Standard Time |
| UTC offset | UTC+0 | UTC-3 |
| Offset from Dublin | — | −3 h |
| IANA zone | Europe/Dublin | America/Sao Paulo |
| Daylight saving | On standard time → UTC+1, Mar 28, 02:00 | Not observed |
| Sunrise | 07:33 | 05:01 |
| Sunset | 16:45 | 18:03 |
| Daylight | 9 h 12 min | 13 h 2 min |
| People on this clock | 588,233 | 156,491 |
Compare Dublin with another city
More comparisons with Dublin: the time zones next to it and the far side of the clock.
Big time differences
Dublin and Rio das Ostras: common questions
How far behind Dublin is Rio das Ostras?
Rio das Ostras is 3 hours behind Dublin: UTC−3 against UTC+0.
What time is it in Rio das Ostras at the start of the working day in Dublin?
The working day in Dublin starts at 9:00 AM; in Rio das Ostras it is 6:00 AM at that moment.
What time is it in Rio das Ostras when it is 6:00 PM in Dublin?
When it is 6:00 PM in Dublin, it is 3:00 PM in Rio das Ostras.
When is a good time to call Rio das Ostras from Dublin?
Between 12:00 PM and 6:00 PM in Dublin – that is 9:00 AM to 3:00 PM in Rio das Ostras – both places are within working hours (9:00 AM–6:00 PM).
When is it still the previous day in Rio das Ostras?
Until 3:00 AM in Dublin it is still the previous day in Rio das Ostras. The other way round, from 9:00 PM in Rio das Ostras it is already the next day in Dublin.
Is the time difference between Dublin and Rio das Ostras the same all year?
No. Only Dublin switches to summer time, so the gap changes twice a year. From March 28, 2027, Rio das Ostras will be 4 hours behind Dublin.
