Rio de Janeiro to Montclair, NJ: time difference
Montclair, NJ 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 15:39 3:39 PM Montclair, NJ 14:39 2:39 PM You –:–
15:39 3:39 PM
Brasilia Standard Time · UTC-3
☀️ 05:19 · 🌙 17:59
14:39 2:39 PM
Eastern Daylight Time · UTC-4
☀️ 07:12 · 🌙 18:13
·
−1 h
Montclair, NJ is 1 h behind Rio de Janeiro.
When you, Rio de Janeiro and Montclair, NJ 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
🇺🇸 Montclair, NJ
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 | 🇺🇸 Montclair, NJ |
|---|---|---|
| Local time | 15:39 | 14:39 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Brasilia Standard Time | Eastern Daylight Time |
| UTC offset | UTC-3 | UTC-4 |
| Offset from Rio de Janeiro | — | −1 h |
| IANA zone | America/Sao Paulo | America/New York |
| Daylight saving | Not observed | On summer time → UTC-5, Nov 1, 01:00 |
| Sunrise | 05:19 | 07:12 |
| Sunset | 17:59 | 18:13 |
| Daylight | 12 h 40 min | 11 h 2 min |
| People on this clock | 6,211,223 | 37,669 |
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 Montclair, NJ: common questions
How many hours behind Rio de Janeiro is Montclair, NJ?
The clocks in Montclair are 1 hour behind those in Rio de Janeiro (UTC−4 and UTC−3).
What time is it in Montclair, NJ, at the start of the working day in Rio de Janeiro?
The working day in Rio de Janeiro starts at 9:00 AM; in Montclair it is 8:00 AM at that moment.
What time is it in Montclair, NJ, at the end of the working day in Rio de Janeiro?
The working day in Rio de Janeiro ends at 6:00 PM; in Montclair it is 5:00 PM at that moment.
When is a good time to call Montclair, NJ, from Rio de Janeiro?
Between 10:00 AM and 6:00 PM in Rio de Janeiro – that is 9:00 AM to 5:00 PM in Montclair – both places are within working hours (9:00 AM–6:00 PM).
When is it still the previous day in Montclair, NJ?
Until 1:00 AM in Rio de Janeiro it is still the previous day in Montclair. The other way round, from 11:00 PM in Montclair it is already the next day in Rio de Janeiro.
Is the time difference between Rio de Janeiro and Montclair, NJ, the same all year?
No. Only Montclair switches to summer time, so the gap changes twice a year. From November 1, 2026, Montclair will be 2 hours behind Rio de Janeiro.
