Rio de Janeiro to Ottawa: time difference
Ottawa 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 02:32 2:32 AM Ottawa 01:32 1:32 AM You –:–
02:32 2:32 AM
Brasilia Standard Time · UTC-3
☀️ 05:26 · 🌙 17:55
01:32 1:32 AM
Eastern Daylight Time · UTC-4
☀️ 07:13 · 🌙 18:28
·
−1 h
Ottawa is 1 h behind Rio de Janeiro.
When you, Rio de Janeiro and Ottawa 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
🇨🇦 Ottawa
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 | 🇨🇦 Ottawa |
|---|---|---|
| Local time | 02:32 | 01:32 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 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/Toronto |
| Daylight saving | Not observed | On summer time → UTC-5, Nov 1, 01:00 |
| Sunrise | 05:26 | 07:13 |
| Sunset | 17:55 | 18:28 |
| Daylight | 12 h 30 min | 11 h 15 min |
| People on this clock | 6,211,223 | 1,000,000 |
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 Ottawa: common questions
How many hours behind Rio de Janeiro is Ottawa?
The clocks in Ottawa are 1 hour behind those in Rio de Janeiro (UTC−4 and UTC−3).
What time is it in Ottawa at the start of the working day in Rio de Janeiro?
The working day in Rio de Janeiro starts at 9:00 AM; in Ottawa it is 8:00 AM at that moment.
If it is 6:00 PM in Rio de Janeiro, what time is it in Ottawa?
At 6:00 PM in Rio de Janeiro, clocks in Ottawa show 5:00 PM.
Is there a time when both Rio de Janeiro and Ottawa are at work?
Yes: from 10:00 AM to 6:00 PM in Rio de Janeiro (9:00 AM to 5:00 PM in Ottawa), the working days (9:00 AM–6:00 PM) overlap.
Until what time in Rio de Janeiro is it still yesterday in Ottawa?
Before 1:00 AM in Rio de Janeiro, the date in Ottawa has not changed yet. From 11:00 PM in Ottawa, it is already the next day in Rio de Janeiro.
Is the time difference between Rio de Janeiro and Ottawa the same all year?
No. Only Ottawa switches to summer time, so the gap changes twice a year. From November 1, 2026, Ottawa will be 2 hours behind Rio de Janeiro.
