Reykjavik to Osasco: time difference
Osasco 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 08:06 8:06 AM Osasco 05:06 5:06 AM You –:–
08:06 8:06 AM
Greenwich Mean Time · UTC+0
☀️ 08:27 · 🌙 18:00
05:06 5:06 AM
Brasilia Standard Time · UTC-3
☀️ 05:32 · 🌙 18:14
·
−3 h
Osasco is 3 h behind Reykjavik.
When you, Reykjavik and Osasco 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
🇧🇷 Osasco
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 | 🇧🇷 Osasco |
|---|---|---|
| Local time | 08:06 | 05:06 |
| 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 | 05:32 |
| Sunset | 18:00 | 18:14 |
| Daylight | 9 h 33 min | 12 h 41 min |
| People on this clock | 136,894 | 728,615 |
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 Osasco: common questions
What is the time difference between Reykjavik and Osasco?
Osasco is 3 hours behind: it uses UTC−3, while Reykjavik is on UTC+0.
What time is it in Osasco at the start of the working day in Reykjavik?
The working day in Reykjavik starts at 9:00 AM; in Osasco it is 6:00 AM at that moment.
If it is 6:00 PM in Reykjavik, what time is it in Osasco?
At 6:00 PM in Reykjavik, clocks in Osasco show 3:00 PM.
Is there a time when both Reykjavik and Osasco are at work?
Yes: from 12:00 PM to 6:00 PM in Reykjavik (9:00 AM to 3:00 PM in Osasco), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Osasco compared with Reykjavik?
The new day starts in Osasco later: until 3:00 AM in Reykjavik, it is still the previous day there. From 9:00 PM in Osasco, Reykjavik is already on the next day.
Does the time gap between Reykjavik and Osasco change during the year?
No, the clocks change neither in Reykjavik nor in Osasco, so the gap is 3 hours all year round.
