Rio de Janeiro to Boca Chica: time difference
Boca Chica is 1 h behind Rio de Janeiro. 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.
Rio de Janeiro 11:13 11:13 AM Boca Chica 10:13 10:13 AM You –:–
11:13 11:13 AM
Brasilia Standard Time · UTC-3
☀️ 05:19 · 🌙 17:59
10:13 10:13 AM
Atlantic Standard Time · UTC-4
☀️ 06:34 · 🌙 18:15
·
−1 h
Boca Chica is 1 h behind Rio de Janeiro.
When you, Rio de Janeiro and Boca Chica are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇧🇷 Rio de Janeiro
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
🇩🇴 Boca Chica
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 21 9 PM 22 10 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇧🇷 Rio de Janeiro | 🇩🇴 Boca Chica |
|---|---|---|
| Local time | 11:13 | 10:13 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Brasilia Standard Time | Atlantic Standard Time |
| UTC offset | UTC-3 | UTC-4 |
| Offset from Rio de Janeiro | — | −1 h |
| IANA zone | America/Sao Paulo | America/Santo Domingo |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:19 | 06:34 |
| Sunset | 17:59 | 18:15 |
| Daylight | 12 h 40 min | 11 h 41 min |
| People on this clock | 6,211,223 | 46,300 |
Compare Rio de Janeiro with another city
More comparisons with Rio de Janeiro: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Rio de Janeiro and Boca Chica: common questions
How many hours behind Rio de Janeiro is Boca Chica?
The clocks in Boca Chica are 1 hour behind those in Rio de Janeiro (UTC−4 and UTC−3).
If it is 9:00 AM in Rio de Janeiro, what time is it in Boca Chica?
At 9:00 AM in Rio de Janeiro, clocks in Boca Chica show 8:00 AM.
What time is it in Boca Chica at the end of the working day in Rio de Janeiro?
The working day in Rio de Janeiro ends at 6:00 PM; in Boca Chica it is 5:00 PM at that moment.
Is there a time when both Rio de Janeiro and Boca Chica are at work?
Yes: from 10:00 AM to 6:00 PM in Rio de Janeiro (9:00 AM to 5:00 PM in Boca Chica), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Boca Chica compared with Rio de Janeiro?
The new day starts in Boca Chica later: until 1:00 AM in Rio de Janeiro, it is still the previous day there. From 11:00 PM in Boca Chica, Rio de Janeiro is already on the next day.
Does the time gap between Rio de Janeiro and Boca Chica change during the year?
No, the clocks change neither in Rio de Janeiro nor in Boca Chica, so the gap is 1 hour all year round.
