Guyana to Rio de Janeiro: time difference
Rio de Janeiro is 1 h ahead of Guyana. Live clocks for both, the working hours they share, and how each one sits against your own time.
+1 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Guyana 21:40 9:40 PM Rio de Janeiro 22:40 10:40 PM You –:–
21:40 9:40 PM
Guyana Time · UTC-4
☀️ 05:40 · 🌙 17:41
22:40 10:40 PM
Brasilia Standard Time · UTC-3
☀️ 05:27 · 🌙 17:55
·
+1 h
Rio de Janeiro is 1 h ahead of Guyana.
When you, Guyana 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
🇬🇾 Guyana
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
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 0 12 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇬🇾 Guyana | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 21:40 | 22:40 |
| Local date | Friday, October 9, 2026 | Friday, October 9, 2026 |
| Time zone | Guyana Time | Brasilia Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Guyana | — | +1 h |
| IANA zone | America/Guyana | America/Sao Paulo |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:40 | 05:27 |
| Sunset | 17:41 | 17:55 |
| Daylight | 12 h 1 min | 12 h 28 min |
| People on this clock | 777,859 | 6,211,223 |
Compare Guyana with another city
More comparisons with Guyana: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Guyana and Rio de Janeiro: common questions
What is the time difference between Guyana and Rio de Janeiro?
Rio de Janeiro is 1 hour ahead: it uses UTC−3, while Guyana is on UTC−4.
If it is 9:00 AM in Guyana, what time is it in Rio de Janeiro?
At 9:00 AM in Guyana, clocks in Rio de Janeiro show 10:00 AM.
What time is it in Rio de Janeiro when it is 6:00 PM in Guyana?
When it is 6:00 PM in Guyana, it is 7:00 PM in Rio de Janeiro.
When is a good time to call Rio de Janeiro from Guyana?
Between 9:00 AM and 5:00 PM in Guyana – that is 10:00 AM to 6:00 PM in Rio de Janeiro – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in Rio de Janeiro compared with Guyana?
The new day starts in Rio de Janeiro earlier: at 11:00 PM in Guyana it is already midnight there. Until 1:00 AM in Rio de Janeiro, Guyana is still on the previous day.
Does the time difference between Guyana and Rio de Janeiro change?
No. Neither place uses daylight saving time, so the difference stays 1 hour all year.
