Rio das Ostras to Montreal: time difference
Montreal is 1 h behind Rio das Ostras. 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 das Ostras 04:49 4:49 AM Montreal 03:49 3:49 AM You –:–
04:49 4:49 AM
Brasilia Standard Time · UTC-3
☀️ 05:13 · 🌙 17:54
03:49 3:49 AM
Eastern Daylight Time · UTC-4
☀️ 07:16 · 🌙 18:03
·
−1 h
Montreal is 1 h behind Rio das Ostras.
When you, Rio das Ostras and Montreal 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 das Ostras
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
🇨🇦 Montreal
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 das Ostras | 🇨🇦 Montreal |
|---|---|---|
| Local time | 04:49 | 03:49 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 2026 |
| Time zone | Brasilia Standard Time | Eastern Daylight Time |
| UTC offset | UTC-3 | UTC-4 |
| Offset from Rio das Ostras | — | −1 h |
| IANA zone | America/Sao Paulo | America/Toronto |
| Daylight saving | Not observed | On summer time → UTC-5, Nov 1, 01:00 |
| Sunrise | 05:13 | 07:16 |
| Sunset | 17:54 | 18:03 |
| Daylight | 12 h 41 min | 10 h 47 min |
| People on this clock | 156,491 | 1,762,949 |
Compare Rio das Ostras with another city
More comparisons with Rio das Ostras: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Rio das Ostras and Montreal: common questions
What is the time difference between Rio das Ostras and Montreal?
Montreal is 1 hour behind: it uses UTC−4, while Rio das Ostras is on UTC−3.
If it is 9:00 AM in Rio das Ostras, what time is it in Montreal?
At 9:00 AM in Rio das Ostras, clocks in Montreal show 8:00 AM.
If it is 6:00 PM in Rio das Ostras, what time is it in Montreal?
At 6:00 PM in Rio das Ostras, clocks in Montreal show 5:00 PM.
When is a good time to call Montreal from Rio das Ostras?
Between 10:00 AM and 6:00 PM in Rio das Ostras – that is 9:00 AM to 5:00 PM in Montreal – both places are within working hours (9:00 AM–6:00 PM).
Until what time in Rio das Ostras is it still yesterday in Montreal?
Before 1:00 AM in Rio das Ostras, the date in Montreal has not changed yet. From 11:00 PM in Montreal, it is already the next day in Rio das Ostras.
Does the time gap between Rio das Ostras and Montreal change during the year?
Yes – daylight saving time is used in Montreal but not in Rio das Ostras. From November 1, 2026, Montreal will be 2 hours behind Rio das Ostras.
