Rio de Janeiro to Oakville: time difference
Oakville 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 01:47 1:47 AM Oakville 00:47 12:47 AM You –:–
01:47 1:47 AM
Brasilia Standard Time · UTC-3
☀️ 05:18 · 🌙 17:59
00:47 12:47 AM
Eastern Daylight Time · UTC-4
☀️ 07:37 · 🌙 18:32
·
−1 h
Oakville is 1 h behind Rio de Janeiro.
When you, Rio de Janeiro and Oakville 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
🇨🇦 Oakville
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 | 🇨🇦 Oakville |
|---|---|---|
| Local time | 01:47 | 00:47 |
| 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 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 | 05:18 | 07:37 |
| Sunset | 17:59 | 18:32 |
| Daylight | 12 h 41 min | 10 h 55 min |
| People on this clock | 6,211,223 | 193,832 |
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 Oakville: common questions
How far behind Rio de Janeiro is Oakville?
Oakville is 1 hour behind Rio de Janeiro: UTC−4 against UTC−3.
What time is it in Oakville when it is 9:00 AM in Rio de Janeiro?
When it is 9:00 AM in Rio de Janeiro, it is 8:00 AM in Oakville.
What time is it in Oakville at the end of the working day in Rio de Janeiro?
The working day in Rio de Janeiro ends at 6:00 PM; in Oakville it is 5:00 PM at that moment.
When do working hours in Rio de Janeiro and in Oakville overlap?
Working hours (9:00 AM–6:00 PM) overlap from 10:00 AM to 6:00 PM in Rio de Janeiro, which is 9:00 AM to 5:00 PM in Oakville.
When does the date change in Oakville compared with Rio de Janeiro?
The new day starts in Oakville later: until 1:00 AM in Rio de Janeiro, it is still the previous day there. From 11:00 PM in Oakville, Rio de Janeiro is already on the next day.
Does the time difference between Rio de Janeiro and Oakville change?
Yes. The clocks change only in Oakville. From November 1, 2026, Oakville will be 2 hours behind Rio de Janeiro.
