Reykjavik to Brasilia: time difference
Brasilia 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 11:52 11:52 AM Brasilia 08:52 8:52 AM You –:–
11:52 11:52 AM
Greenwich Mean Time · UTC+0
☀️ 08:03 · 🌙 18:28
08:52 8:52 AM
Brasilia Standard Time · UTC-3
☀️ 05:48 · 🌙 18:10
·
−3 h
Brasilia is 3 h behind Reykjavik.
When you, Reykjavik and Brasilia 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
🇧🇷 Brasilia
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 | 🇧🇷 Brasilia |
|---|---|---|
| Local time | 11:52 | 08:52 |
| 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 | 05:48 |
| Sunset | 18:28 | 18:10 |
| Daylight | 10 h 25 min | 12 h 22 min |
| People on this clock | 136,894 | 2,817,381 |
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 Brasilia: common questions
How far behind Reykjavik is Brasilia?
Brasilia is 3 hours behind Reykjavik: UTC−3 against UTC+0.
If it is 9:00 AM in Reykjavik, what time is it in Brasilia?
At 9:00 AM in Reykjavik, clocks in Brasilia show 6:00 AM.
What time is it in Brasilia when it is 6:00 PM in Reykjavik?
When it is 6:00 PM in Reykjavik, it is 3:00 PM in Brasilia.
Is there a time when both Reykjavik and Brasilia are at work?
Yes: from 12:00 PM to 6:00 PM in Reykjavik (9:00 AM to 3:00 PM in Brasilia), the working days (9:00 AM–6:00 PM) overlap.
Until what time in Reykjavik is it still yesterday in Brasilia?
Before 3:00 AM in Reykjavik, the date in Brasilia has not changed yet. From 9:00 PM in Brasilia, it is already the next day in Reykjavik.
Does the time gap between Reykjavik and Brasilia change during the year?
No, the clocks change neither in Reykjavik nor in Brasilia, so the gap is 3 hours all year round.
