Reykjavik to Rio do Sul: time difference
Rio do Sul is 3 h behind Reykjavik. Live clocks for both, the working hours they share, and how each one sits against your own time.
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Reykjavik 22:36 10:36 PM Rio do Sul 19:36 7:36 PM You –:–
22:36 10:36 PM
Greenwich Mean Time · UTC+0
☀️ 08:36 · 🌙 17:50
19:36 7:36 PM
Brasilia Standard Time · UTC-3
☀️ 05:38 · 🌙 18:30
·
−3 h
Rio do Sul is 3 h behind Reykjavik.
When you, Reykjavik and Rio do Sul are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇮🇸 Reykjavik
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 do Sul
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
- Right now
Time zones side by side
| Detail | 🇮🇸 Reykjavik | 🇧🇷 Rio do Sul |
|---|---|---|
| Local time | 22:36 | 19:36 |
| Local date | Wednesday, October 21, 2026 | Wednesday, October 21, 2026 |
| Time zone | Greenwich Mean Time | Brasilia Standard Time |
| UTC offset | UTC+0 | UTC-3 |
| Offset from Reykjavik | — | −3 h |
| IANA zone | Atlantic/Reykjavik | America/Sao Paulo |
| Daylight saving | Not observed | Not observed |
| Sunrise | 08:36 | 05:38 |
| Sunset | 17:50 | 18:30 |
| Daylight | 9 h 14 min | 12 h 52 min |
| People on this clock | 136,894 | 72,587 |
Compare Reykjavik with another city
More comparisons with Reykjavik: the time zones next to it and the far side of the clock.
Big time differences
Reykjavik and Rio do Sul: common questions
How many hours behind Reykjavik is Rio do Sul?
The clocks in Rio do Sul are 3 hours behind those in Reykjavik (UTC−3 and UTC+0).
What time is it in Rio do Sul when it is 9:00 AM in Reykjavik?
When it is 9:00 AM in Reykjavik, it is 6:00 AM in Rio do Sul.
What time is it in Rio do Sul when it is 6:00 PM in Reykjavik?
When it is 6:00 PM in Reykjavik, it is 3:00 PM in Rio do Sul.
When is a good time to call Rio do Sul from Reykjavik?
Between 12:00 PM and 6:00 PM in Reykjavik – that is 9:00 AM to 3:00 PM in Rio do Sul – both places are within working hours (9:00 AM–6:00 PM).
Until what time in Reykjavik is it still yesterday in Rio do Sul?
Before 3:00 AM in Reykjavik, the date in Rio do Sul has not changed yet. From 9:00 PM in Rio do Sul, it is already the next day in Reykjavik.
Does the time gap between Reykjavik and Rio do Sul change during the year?
No, the clocks change neither in Reykjavik nor in Rio do Sul, so the gap is 3 hours all year round.
