Cuba to Rio de Janeiro: time difference
Rio de Janeiro is 1 h ahead of Cuba. 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.
Cuba 21:40 9:40 PM Rio de Janeiro 22:40 10:40 PM You –:–
21:40 9:40 PM
Cuba Daylight Time · UTC-4
☀️ 07:25 · 🌙 19:10
22:40 10:40 PM
Brasilia Standard Time · UTC-3
☀️ 05:27 · 🌙 17:55
·
+1 h
Rio de Janeiro is 1 h ahead of Cuba.
When you, Cuba 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
🇨🇺 Cuba
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 | 🇨🇺 Cuba | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 21:40 | 22:40 |
| Local date | Friday, October 9, 2026 | Friday, October 9, 2026 |
| Time zone | Cuba Daylight Time | Brasilia Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Cuba | — | +1 h |
| IANA zone | America/Havana | America/Sao Paulo |
| Daylight saving | On summer time → UTC-5, Nov 1, 00:00 | Not observed |
| Sunrise | 07:25 | 05:27 |
| Sunset | 19:10 | 17:55 |
| Daylight | 11 h 46 min | 12 h 28 min |
| People on this clock | 10,985,974 | 6,211,223 |
Compare Cuba with another city
More comparisons with Cuba: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Cuba and Rio de Janeiro: common questions
What is the time difference between Cuba and Rio de Janeiro?
Rio de Janeiro is 1 hour ahead: it uses UTC−3, while Cuba is on UTC−4.
What time is it in Rio de Janeiro at the start of the working day in Cuba?
The working day in Cuba starts at 9:00 AM; in Rio de Janeiro it is 10:00 AM at that moment.
What time is it in Rio de Janeiro when it is 6:00 PM in Cuba?
When it is 6:00 PM in Cuba, it is 7:00 PM in Rio de Janeiro.
Is there a time when both Cuba and Rio de Janeiro are at work?
Yes: from 9:00 AM to 5:00 PM in Cuba (10:00 AM to 6:00 PM in Rio de Janeiro), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Rio de Janeiro compared with Cuba?
The new day starts in Rio de Janeiro earlier: at 11:00 PM in Cuba it is already midnight there. Until 1:00 AM in Rio de Janeiro, Cuba is still on the previous day.
Is the time difference between Cuba and Rio de Janeiro the same all year?
No. Only Cuba switches to summer time, so the gap changes twice a year. From November 1, 2026, Rio de Janeiro will be 2 hours ahead of Cuba.
