Montreal to Rio Claro: time difference
Rio Claro is 1 h ahead of Montreal. 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.
Montreal 18:34 6:34 PM Rio Claro 19:34 7:34 PM You –:–
18:34 6:34 PM
Eastern Daylight Time · UTC-4
☀️ 07:15 · 🌙 18:05
19:34 7:34 PM
Brasilia Standard Time · UTC-3
☀️ 05:36 · 🌙 18:16
·
+1 h
Rio Claro is 1 h ahead of Montreal.
When you, Montreal and Rio Claro are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇨🇦 Montreal
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 Claro
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 | 🇨🇦 Montreal | 🇧🇷 Rio Claro |
|---|---|---|
| Local time | 18:34 | 19:34 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Eastern Daylight Time | Brasilia Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Montreal | — | +1 h |
| IANA zone | America/Toronto | America/Sao Paulo |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | Not observed |
| Sunrise | 07:15 | 05:36 |
| Sunset | 18:05 | 18:16 |
| Daylight | 10 h 50 min | 12 h 39 min |
| People on this clock | 1,762,949 | 201,418 |
Compare Montreal with another city
More comparisons with Montreal: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Montreal and Rio Claro: common questions
How many hours ahead of Montreal is Rio Claro?
The clocks in Rio Claro are 1 hour ahead of those in Montreal (UTC−3 and UTC−4).
What time is it in Rio Claro at the start of the working day in Montreal?
The working day in Montreal starts at 9:00 AM; in Rio Claro it is 10:00 AM at that moment.
What time is it in Rio Claro when it is 6:00 PM in Montreal?
When it is 6:00 PM in Montreal, it is 7:00 PM in Rio Claro.
Is there a time when both Montreal and Rio Claro are at work?
Yes: from 9:00 AM to 5:00 PM in Montreal (10:00 AM to 6:00 PM in Rio Claro), the working days (9:00 AM–6:00 PM) overlap.
From what time in Montreal is it tomorrow in Rio Claro?
Once it is 11:00 PM in Montreal, the date in Rio Claro has already changed. Until 1:00 AM in Rio Claro, it is still the previous day in Montreal.
Does the time difference between Montreal and Rio Claro change?
Yes. The clocks change only in Montreal. From November 1, 2026, Rio Claro will be 2 hours ahead of Montreal.
