Reykjavik to Sao Carlos: time difference
Sao Carlos 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 10:51 10:51 AM Sao Carlos 07:51 7:51 AM You –:–
10:51 10:51 AM
Greenwich Mean Time · UTC+0
☀️ 08:03 · 🌙 18:28
07:51 7:51 AM
Brasilia Standard Time · UTC-3
☀️ 05:45 · 🌙 18:13
·
−3 h
Sao Carlos is 3 h behind Reykjavik.
When you, Reykjavik and Sao Carlos 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
🇧🇷 Sao Carlos
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 | 🇧🇷 Sao Carlos |
|---|---|---|
| Local time | 10:51 | 07:51 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 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 | 08:03 | 05:45 |
| Sunset | 18:28 | 18:13 |
| Daylight | 10 h 25 min | 12 h 29 min |
| People on this clock | 136,894 | 254,857 |
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 Sao Carlos: common questions
How far behind Reykjavik is Sao Carlos?
Sao Carlos is 3 hours behind Reykjavik: UTC−3 against UTC+0.
If it is 9:00 AM in Reykjavik, what time is it in Sao Carlos?
At 9:00 AM in Reykjavik, clocks in Sao Carlos show 6:00 AM.
What time is it in Sao Carlos at the end of the working day in Reykjavik?
The working day in Reykjavik ends at 6:00 PM; in Sao Carlos it is 3:00 PM at that moment.
When is a good time to call Sao Carlos from Reykjavik?
Between 12:00 PM and 6:00 PM in Reykjavik – that is 9:00 AM to 3:00 PM in Sao Carlos – both places are within working hours (9:00 AM–6:00 PM).
Until what time in Reykjavik is it still yesterday in Sao Carlos?
Before 3:00 AM in Reykjavik, the date in Sao Carlos has not changed yet. From 9:00 PM in Sao Carlos, it is already the next day in Reykjavik.
Does the time difference between Reykjavik and Sao Carlos change?
No. Neither place uses daylight saving time, so the difference stays 3 hours all year.
