Reykjavik to Cerquilho: time difference
Cerquilho 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 03:37 3:37 AM Cerquilho 00:37 12:37 AM You –:–
03:37 3:37 AM
Greenwich Mean Time · UTC+0
☀️ 08:39 · 🌙 17:47
00:37 12:37 AM
Brasilia Standard Time · UTC-3
☀️ 05:33 · 🌙 18:19
·
−3 h
Cerquilho is 3 h behind Reykjavik.
When you, Reykjavik and Cerquilho 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
🇧🇷 Cerquilho
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 | 🇧🇷 Cerquilho |
|---|---|---|
| Local time | 03:37 | 00:37 |
| Local date | Thursday, October 22, 2026 | Thursday, October 22, 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 | 08:39 | 05:33 |
| Sunset | 17:47 | 18:19 |
| Daylight | 9 h 7 min | 12 h 46 min |
| People on this clock | 136,894 | 44,695 |
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 Cerquilho: common questions
How far behind Reykjavik is Cerquilho?
Cerquilho is 3 hours behind Reykjavik: UTC−3 against UTC+0.
What time is it in Cerquilho at the start of the working day in Reykjavik?
The working day in Reykjavik starts at 9:00 AM; in Cerquilho it is 6:00 AM at that moment.
What time is it in Cerquilho when it is 6:00 PM in Reykjavik?
When it is 6:00 PM in Reykjavik, it is 3:00 PM in Cerquilho.
Is there a time when both Reykjavik and Cerquilho are at work?
Yes: from 12:00 PM to 6:00 PM in Reykjavik (9:00 AM to 3:00 PM in Cerquilho), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Cerquilho compared with Reykjavik?
The new day starts in Cerquilho later: until 3:00 AM in Reykjavik, it is still the previous day there. From 9:00 PM in Cerquilho, Reykjavik is already on the next day.
Is the time difference between Reykjavik and Cerquilho the same all year?
Yes. Neither Reykjavik nor Cerquilho switches to summer time, so the gap is always 3 hours.
