Boca Chica to Rio de Janeiro: time difference
Rio de Janeiro is 1 h ahead of Boca Chica. 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.
Boca Chica 09:14 9:14 AM Rio de Janeiro 10:14 10:14 AM You –:–
09:14 9:14 AM
Atlantic Standard Time · UTC-4
☀️ 06:34 · 🌙 18:15
10:14 10:14 AM
Brasilia Standard Time · UTC-3
☀️ 05:19 · 🌙 17:59
·
+1 h
Rio de Janeiro is 1 h ahead of Boca Chica.
When you, Boca Chica 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
🇩🇴 Boca Chica
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
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Time zones side by side
| Detail | 🇩🇴 Boca Chica | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 09:14 | 10:14 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Atlantic Standard Time | Brasilia Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Boca Chica | — | +1 h |
| IANA zone | America/Santo Domingo | America/Sao Paulo |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:34 | 05:19 |
| Sunset | 18:15 | 17:59 |
| Daylight | 11 h 41 min | 12 h 40 min |
| People on this clock | 46,300 | 6,211,223 |
Compare Boca Chica with another city
More comparisons with Boca Chica: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Boca Chica and Rio de Janeiro: common questions
How many hours ahead of Boca Chica is Rio de Janeiro?
The clocks in Rio de Janeiro are 1 hour ahead of those in Boca Chica (UTC−3 and UTC−4).
If it is 9:00 AM in Boca Chica, what time is it in Rio de Janeiro?
At 9:00 AM in Boca Chica, clocks in Rio de Janeiro show 10:00 AM.
What time is it in Rio de Janeiro at the end of the working day in Boca Chica?
The working day in Boca Chica ends at 6:00 PM; in Rio de Janeiro it is 7:00 PM at that moment.
When do working hours in Boca Chica and in Rio de Janeiro overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 5:00 PM in Boca Chica, which is 10:00 AM to 6:00 PM in Rio de Janeiro.
When does the date change in Rio de Janeiro compared with Boca Chica?
The new day starts in Rio de Janeiro earlier: at 11:00 PM in Boca Chica it is already midnight there. Until 1:00 AM in Rio de Janeiro, Boca Chica is still on the previous day.
Does the time difference between Boca Chica and Rio de Janeiro change?
No. Neither place uses daylight saving time, so the difference stays 1 hour all year.
