Petropolis to Reykjavik: time difference
Reykjavik is 3 h ahead of Petropolis. 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.
Petropolis 12:10 12:10 PM Reykjavik 15:10 3:10 PM You –:–
12:10 12:10 PM
Brasilia Standard Time · UTC-3
☀️ 05:17 · 🌙 17:59
15:10 3:10 PM
Greenwich Mean Time · UTC+0
☀️ 08:33 · 🌙 17:53
·
+3 h
Reykjavik is 3 h ahead of Petropolis.
When you, Petropolis 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
🇧🇷 Petropolis
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 | 🇧🇷 Petropolis | 🇮🇸 Reykjavik |
|---|---|---|
| Local time | 12:10 | 15:10 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Brasilia Standard Time | Greenwich Mean Time |
| UTC offset | UTC-3 | UTC+0 |
| Offset from Petropolis | — | +3 h |
| IANA zone | America/Sao Paulo | Atlantic/Reykjavik |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:17 | 08:33 |
| Sunset | 17:59 | 17:53 |
| Daylight | 12 h 42 min | 9 h 20 min |
| People on this clock | 278,881 | 136,894 |
Compare Petropolis with another city
More comparisons with Petropolis: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Petropolis and Reykjavik: common questions
How far ahead of Petropolis is Reykjavik?
Reykjavik is 3 hours ahead of Petropolis: UTC+0 against UTC−3.
If it is 9:00 AM in Petropolis, what time is it in Reykjavik?
At 9:00 AM in Petropolis, clocks in Reykjavik show 12:00 PM.
If it is 6:00 PM in Petropolis, what time is it in Reykjavik?
At 6:00 PM in Petropolis, clocks in Reykjavik show 9:00 PM.
When do working hours in Petropolis and in Reykjavik overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 3:00 PM in Petropolis, which is 12:00 PM to 6:00 PM in Reykjavik.
From what time in Petropolis is it tomorrow in Reykjavik?
Once it is 9:00 PM in Petropolis, the date in Reykjavik has already changed. Until 3:00 AM in Reykjavik, it is still the previous day in Petropolis.
Does the time difference between Petropolis and Reykjavik change?
No. Neither place uses daylight saving time, so the difference stays 3 hours all year.
