Reykjavik to Cotia: time difference
Cotia 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 16:13 4:13 PM Cotia 13:13 1:13 PM You –:–
16:13 4:13 PM
Greenwich Mean Time · UTC+0
☀️ 08:15 · 🌙 18:14
13:13 1:13 PM
Brasilia Standard Time · UTC-3
☀️ 05:36 · 🌙 18:12
·
−3 h
Cotia is 3 h behind Reykjavik.
When you, Reykjavik and Cotia 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
🇧🇷 Cotia
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 | 🇧🇷 Cotia |
|---|---|---|
| Local time | 16:13 | 13:13 |
| Local date | Wednesday, October 14, 2026 | Wednesday, October 14, 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 | 08:15 | 05:36 |
| Sunset | 18:14 | 18:12 |
| Daylight | 9 h 59 min | 12 h 36 min |
| People on this clock | 136,894 | 274,413 |
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 Cotia: common questions
How many hours behind Reykjavik is Cotia?
The clocks in Cotia are 3 hours behind those in Reykjavik (UTC−3 and UTC+0).
If it is 9:00 AM in Reykjavik, what time is it in Cotia?
At 9:00 AM in Reykjavik, clocks in Cotia show 6:00 AM.
What time is it in Cotia at the end of the working day in Reykjavik?
The working day in Reykjavik ends at 6:00 PM; in Cotia it is 3:00 PM at that moment.
Is there a time when both Reykjavik and Cotia are at work?
Yes: from 12:00 PM to 6:00 PM in Reykjavik (9:00 AM to 3:00 PM in Cotia), the working days (9:00 AM–6:00 PM) overlap.
Until what time in Reykjavik is it still yesterday in Cotia?
Before 3:00 AM in Reykjavik, the date in Cotia has not changed yet. From 9:00 PM in Cotia, it is already the next day in Reykjavik.
Is the time difference between Reykjavik and Cotia the same all year?
Yes. Neither Reykjavik nor Cotia switches to summer time, so the gap is always 3 hours.
