Grecia to Rio de Janeiro: time difference
Rio de Janeiro is 3 h ahead of Grecia. Live clocks for both, the working hours they share, and how each one sits against your own time.
+3 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Grecia 21:37 9:37 PM Rio de Janeiro 00:37 12:37 AM You –:–
21:37 9:37 PM
Central Standard Time · UTC-6
☀️ 05:27 · 🌙 17:19
00:37 12:37 AM
Brasilia Standard Time · UTC-3
☀️ 05:17 · 🌙 18:00
·
+3 h
Rio de Janeiro is 3 h ahead of Grecia.
When you, Grecia and Rio de Janeiro are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇨🇷 Grecia
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
🇧🇷 Rio de Janeiro
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 | 🇨🇷 Grecia | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 21:37 | 00:37 |
| Local date | Monday, October 19, 2026 | Tuesday, October 20, 2026 |
| Time zone | Central Standard Time | Brasilia Standard Time |
| UTC offset | UTC-6 | UTC-3 |
| Offset from Grecia | — | +3 h |
| IANA zone | America/Costa Rica | America/Sao Paulo |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:27 | 05:17 |
| Sunset | 17:19 | 18:00 |
| Daylight | 11 h 53 min | 12 h 43 min |
| People on this clock | 16,700 | 6,211,223 |
Compare Grecia with another city
More comparisons with Grecia: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Grecia and Rio de Janeiro: common questions
What is the time difference between Grecia and Rio de Janeiro?
Rio de Janeiro is 3 hours ahead: it uses UTC−3, while Grecia is on UTC−6.
What time is it in Rio de Janeiro at the start of the working day in Grecia?
The working day in Grecia starts at 9:00 AM; in Rio de Janeiro it is 12:00 PM at that moment.
If it is 6:00 PM in Grecia, what time is it in Rio de Janeiro?
At 6:00 PM in Grecia, clocks in Rio de Janeiro show 9:00 PM.
Is there a time when both Grecia and Rio de Janeiro are at work?
Yes: from 9:00 AM to 3:00 PM in Grecia (12:00 PM to 6:00 PM in Rio de Janeiro), the working days (9:00 AM–6:00 PM) overlap.
From what time in Grecia is it tomorrow in Rio de Janeiro?
Once it is 9:00 PM in Grecia, the date in Rio de Janeiro has already changed. Until 3:00 AM in Rio de Janeiro, it is still the previous day in Grecia.
Does the time gap between Grecia and Rio de Janeiro change during the year?
No, the clocks change neither in Grecia nor in Rio de Janeiro, so the gap is 3 hours all year round.
