Marmora, ON to Rio de Janeiro: time difference
Rio de Janeiro is 1 h ahead of Marmora, ON. 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.
Marmora, ON 03:15 3:15 AM Rio de Janeiro 04:15 4:15 AM You –:–
03:15 3:15 AM
Eastern Daylight Time · UTC-4
☀️ 07:31 · 🌙 18:21
04:15 4:15 AM
Brasilia Standard Time · UTC-3
☀️ 05:18 · 🌙 17:59
·
+1 h
Rio de Janeiro is 1 h ahead of Marmora, ON.
When you, Marmora, ON 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
🇨🇦 Marmora, ON
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
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Time zones side by side
| Detail | 🇨🇦 Marmora, ON | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 03:15 | 04:15 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 2026 |
| Time zone | Eastern Daylight Time | Brasilia Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Marmora, ON | — | +1 h |
| IANA zone | America/Toronto | America/Sao Paulo |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | Not observed |
| Sunrise | 07:31 | 05:18 |
| Sunset | 18:21 | 17:59 |
| Daylight | 10 h 50 min | 12 h 41 min |
| People on this clock | 1,499 | 6,211,223 |
Compare Marmora, ON with another city
More comparisons with Marmora, ON: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Marmora, ON and Rio de Janeiro: common questions
How many hours ahead of Marmora, ON, is Rio de Janeiro?
The clocks in Rio de Janeiro are 1 hour ahead of those in Marmora (UTC−3 and UTC−4).
What time is it in Rio de Janeiro at the start of the working day in Marmora, ON?
The working day in Marmora starts at 9:00 AM; in Rio de Janeiro it is 10:00 AM at that moment.
What time is it in Rio de Janeiro when it is 6:00 PM in Marmora, ON?
When it is 6:00 PM in Marmora, it is 7:00 PM in Rio de Janeiro.
When is a good time to call Rio de Janeiro from Marmora, ON?
Between 9:00 AM and 5:00 PM in Marmora – 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).
From what time in Marmora, ON, is it tomorrow in Rio de Janeiro?
Once it is 11:00 PM in Marmora, the date in Rio de Janeiro has already changed. Until 1:00 AM in Rio de Janeiro, it is still the previous day in Marmora.
Does the time difference between Marmora, ON, and Rio de Janeiro change?
Yes. The clocks change only in Marmora. From November 1, 2026, Rio de Janeiro will be 2 hours ahead of Marmora.
