Cotia to Reykjavik: time difference
Reykjavik is 3 h ahead of Cotia. 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.
Cotia 12:15 12:15 PM Reykjavik 15:15 3:15 PM You –:–
12:15 12:15 PM
Brasilia Standard Time · UTC-3
☀️ 05:36 · 🌙 18:12
15:15 3:15 PM
Greenwich Mean Time · UTC+0
☀️ 08:15 · 🌙 18:14
·
+3 h
Reykjavik is 3 h ahead of Cotia.
When you, Cotia and Reykjavik are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇧🇷 Cotia
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
🇮🇸 Reykjavik
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 0 12 AM 1 1 AM 2 2 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇧🇷 Cotia | 🇮🇸 Reykjavik |
|---|---|---|
| Local time | 12:15 | 15:15 |
| Local date | Wednesday, October 14, 2026 | Wednesday, October 14, 2026 |
| Time zone | Brasilia Standard Time | Greenwich Mean Time |
| UTC offset | UTC-3 | UTC+0 |
| Offset from Cotia | — | +3 h |
| IANA zone | America/Sao Paulo | Atlantic/Reykjavik |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:36 | 08:15 |
| Sunset | 18:12 | 18:14 |
| Daylight | 12 h 36 min | 9 h 59 min |
| People on this clock | 274,413 | 136,894 |
Compare Cotia with another city
More comparisons with Cotia: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Cotia and Reykjavik: common questions
How many hours ahead of Cotia is Reykjavik?
The clocks in Reykjavik are 3 hours ahead of those in Cotia (UTC+0 and UTC−3).
If it is 9:00 AM in Cotia, what time is it in Reykjavik?
At 9:00 AM in Cotia, clocks in Reykjavik show 12:00 PM.
What time is it in Reykjavik at the end of the working day in Cotia?
The working day in Cotia ends at 6:00 PM; in Reykjavik it is 9:00 PM at that moment.
When is a good time to call Reykjavik from Cotia?
Between 9:00 AM and 3:00 PM in Cotia – that is 12:00 PM to 6:00 PM in Reykjavik – both places are within working hours (9:00 AM–6:00 PM).
When is it already the next day in Reykjavik?
From 9:00 PM in Cotia it is already the next day in Reykjavik. The other way round, until 3:00 AM in Reykjavik it is still the previous day in Cotia.
Does the time difference between Cotia and Reykjavik change?
No. Neither place uses daylight saving time, so the difference stays 3 hours all year.
