Reykjavik to Serra: time difference
Serra 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 07:15 7:15 AM Serra 04:15 4:15 AM You –:–
07:15 7:15 AM
Greenwich Mean Time · UTC+0
☀️ 08:27 · 🌙 18:00
04:15 4:15 AM
Brasilia Standard Time · UTC-3
☀️ 05:09 · 🌙 17:45
·
−3 h
Serra is 3 h behind Reykjavik.
When you, Reykjavik and Serra 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
🇧🇷 Serra
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 | 🇧🇷 Serra |
|---|---|---|
| Local time | 07:15 | 04:15 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 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 | 08:27 | 05:09 |
| Sunset | 18:00 | 17:45 |
| Daylight | 9 h 33 min | 12 h 36 min |
| People on this clock | 136,894 | 520,653 |
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 Serra: common questions
How many hours behind Reykjavik is Serra?
The clocks in Serra are 3 hours behind those in Reykjavik (UTC−3 and UTC+0).
What time is it in Serra at the start of the working day in Reykjavik?
The working day in Reykjavik starts at 9:00 AM; in Serra it is 6:00 AM at that moment.
What time is it in Serra when it is 6:00 PM in Reykjavik?
When it is 6:00 PM in Reykjavik, it is 3:00 PM in Serra.
When do working hours in Reykjavik and in Serra overlap?
Working hours (9:00 AM–6:00 PM) overlap from 12:00 PM to 6:00 PM in Reykjavik, which is 9:00 AM to 3:00 PM in Serra.
When does the date change in Serra compared with Reykjavik?
The new day starts in Serra later: until 3:00 AM in Reykjavik, it is still the previous day there. From 9:00 PM in Serra, Reykjavik is already on the next day.
Is the time difference between Reykjavik and Serra the same all year?
Yes. Neither Reykjavik nor Serra switches to summer time, so the gap is always 3 hours.
