Rio de Janeiro to Monclova: time difference
Monclova is 3 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 10:12 10:12 AM Monclova 07:12 7:12 AM You –:–
10:12 10:12 AM
Brasilia Standard Time · UTC-3
☀️ 05:15 · 🌙 18:01
07:12 7:12 AM
Central Standard Time · UTC-6
☀️ 06:50 · 🌙 18:12
·
−3 h
Monclova is 3 h behind Rio de Janeiro.
When you, Rio de Janeiro and Monclova 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
🇲🇽 Monclova
21 9 PM 22 10 PM 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇧🇷 Rio de Janeiro | 🇲🇽 Monclova |
|---|---|---|
| Local time | 10:12 | 07:12 |
| Local date | Thursday, October 22, 2026 | Thursday, October 22, 2026 |
| Time zone | Brasilia Standard Time | Central Standard Time |
| UTC offset | UTC-3 | UTC-6 |
| Offset from Rio de Janeiro | — | −3 h |
| IANA zone | America/Sao Paulo | America/Monterrey |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:15 | 06:50 |
| Sunset | 18:01 | 18:12 |
| Daylight | 12 h 45 min | 11 h 22 min |
| People on this clock | 6,211,223 | 237,169 |
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 Monclova: common questions
What is the time difference between Rio de Janeiro and Monclova?
Monclova is 3 hours behind: it uses UTC−6, while Rio de Janeiro is on UTC−3.
What time is it in Monclova when it is 9:00 AM in Rio de Janeiro?
When it is 9:00 AM in Rio de Janeiro, it is 6:00 AM in Monclova.
What time is it in Monclova when it is 6:00 PM in Rio de Janeiro?
When it is 6:00 PM in Rio de Janeiro, it is 3:00 PM in Monclova.
When is a good time to call Monclova from Rio de Janeiro?
Between 12:00 PM and 6:00 PM in Rio de Janeiro – that is 9:00 AM to 3:00 PM in Monclova – both places are within working hours (9:00 AM–6:00 PM).
When is it still the previous day in Monclova?
Until 3:00 AM in Rio de Janeiro it is still the previous day in Monclova. The other way round, from 9:00 PM in Monclova it is already the next day in Rio de Janeiro.
Does the time gap between Rio de Janeiro and Monclova change during the year?
No, the clocks change neither in Rio de Janeiro nor in Monclova, so the gap is 3 hours all year round.
