Reykjavik to Guararema: time difference
Guararema 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 10:38 10:38 AM Guararema 07:38 7:38 AM You –:–
10:38 10:38 AM
Greenwich Mean Time · UTC+0
☀️ 08:39 · 🌙 17:47
07:38 7:38 AM
Brasilia Standard Time · UTC-3
☀️ 05:26 · 🌙 18:12
·
−3 h
Guararema is 3 h behind Reykjavik.
When you, Reykjavik and Guararema 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
🇧🇷 Guararema
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 | 🇧🇷 Guararema |
|---|---|---|
| Local time | 10:38 | 07:38 |
| Local date | Thursday, October 22, 2026 | Thursday, October 22, 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 | 08:39 | 05:26 |
| Sunset | 17:47 | 18:12 |
| Daylight | 9 h 7 min | 12 h 46 min |
| People on this clock | 136,894 | 31,236 |
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 Guararema: common questions
How many hours behind Reykjavik is Guararema?
The clocks in Guararema are 3 hours behind those in Reykjavik (UTC−3 and UTC+0).
What time is it in Guararema when it is 9:00 AM in Reykjavik?
When it is 9:00 AM in Reykjavik, it is 6:00 AM in Guararema.
What time is it in Guararema at the end of the working day in Reykjavik?
The working day in Reykjavik ends at 6:00 PM; in Guararema it is 3:00 PM at that moment.
Is there a time when both Reykjavik and Guararema are at work?
Yes: from 12:00 PM to 6:00 PM in Reykjavik (9:00 AM to 3:00 PM in Guararema), the working days (9:00 AM–6:00 PM) overlap.
Until what time in Reykjavik is it still yesterday in Guararema?
Before 3:00 AM in Reykjavik, the date in Guararema has not changed yet. From 9:00 PM in Guararema, it is already the next day in Reykjavik.
Does the time gap between Reykjavik and Guararema change during the year?
No, the clocks change neither in Reykjavik nor in Guararema, so the gap is 3 hours all year round.
