Châteauguay, QC to Rio de Janeiro: time difference
Rio de Janeiro is 1 h ahead of Châteauguay, QC. 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.
Châteauguay, QC 01:01 1:01 AM Rio de Janeiro 02:01 2:01 AM You –:–
01:01 1:01 AM
Eastern Daylight Time · UTC-4
☀️ 07:20 · 🌙 18:01
02:01 2:01 AM
Brasilia Standard Time · UTC-3
☀️ 05:16 · 🌙 18:00
·
+1 h
Rio de Janeiro is 1 h ahead of Châteauguay, QC.
When you, Châteauguay, QC 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
🇨🇦 Châteauguay, QC
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 | 🇨🇦 Châteauguay, QC | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 01:01 | 02:01 |
| Local date | Wednesday, October 21, 2026 | Wednesday, October 21, 2026 |
| Time zone | Eastern Daylight Time | Brasilia Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Châteauguay, QC | — | +1 h |
| IANA zone | America/Toronto | America/Sao Paulo |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | Not observed |
| Sunrise | 07:20 | 05:16 |
| Sunset | 18:01 | 18:00 |
| Daylight | 10 h 41 min | 12 h 44 min |
| People on this clock | 42,786 | 6,211,223 |
Compare Châteauguay, QC with another city
More comparisons with Châteauguay, QC: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Châteauguay, QC and Rio de Janeiro: common questions
How many hours ahead of Châteauguay, QC, is Rio de Janeiro?
The clocks in Rio de Janeiro are 1 hour ahead of those in Châteauguay (UTC−3 and UTC−4).
What time is it in Rio de Janeiro when it is 9:00 AM in Châteauguay, QC?
When it is 9:00 AM in Châteauguay, it is 10:00 AM in Rio de Janeiro.
What time is it in Rio de Janeiro when it is 6:00 PM in Châteauguay, QC?
When it is 6:00 PM in Châteauguay, it is 7:00 PM in Rio de Janeiro.
When is a good time to call Rio de Janeiro from Châteauguay, QC?
Between 9:00 AM and 5:00 PM in Châteauguay – that is 10:00 AM to 6:00 PM in Rio de Janeiro – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in Rio de Janeiro compared with Châteauguay, QC?
The new day starts in Rio de Janeiro earlier: at 11:00 PM in Châteauguay it is already midnight there. Until 1:00 AM in Rio de Janeiro, Châteauguay is still on the previous day.
Does the time difference between Châteauguay, QC, and Rio de Janeiro change?
Yes. The clocks change only in Châteauguay. From November 1, 2026, Rio de Janeiro will be 2 hours ahead of Châteauguay.
