Rio de Janeiro to Sudbury: time difference
Sudbury 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 01:18 1:18 AM Sudbury 00:18 12:18 AM You –:–
01:18 1:18 AM
Brasilia Standard Time · UTC-3
☀️ 05:21 · 🌙 17:57
00:18 12:18 AM
Eastern Daylight Time · UTC-4
☀️ 07:40 · 🌙 18:41
·
−1 h
Sudbury is 1 h behind Rio de Janeiro.
When you, Rio de Janeiro and Sudbury 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
🇨🇦 Sudbury
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 | 🇨🇦 Sudbury |
|---|---|---|
| Local time | 01:18 | 00:18 |
| Local date | Thursday, October 15, 2026 | Thursday, October 15, 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 | 05:21 | 07:40 |
| Sunset | 17:57 | 18:41 |
| Daylight | 12 h 36 min | 11 h |
| People on this clock | 6,211,223 | 161,531 |
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 Sudbury: common questions
How far behind Rio de Janeiro is Sudbury?
Sudbury is 1 hour behind Rio de Janeiro: UTC−4 against UTC−3.
If it is 9:00 AM in Rio de Janeiro, what time is it in Sudbury?
At 9:00 AM in Rio de Janeiro, clocks in Sudbury show 8:00 AM.
What time is it in Sudbury when it is 6:00 PM in Rio de Janeiro?
When it is 6:00 PM in Rio de Janeiro, it is 5:00 PM in Sudbury.
When is a good time to call Sudbury from Rio de Janeiro?
Between 10:00 AM and 6:00 PM in Rio de Janeiro – that is 9:00 AM to 5:00 PM in Sudbury – both places are within working hours (9:00 AM–6:00 PM).
Until what time in Rio de Janeiro is it still yesterday in Sudbury?
Before 1:00 AM in Rio de Janeiro, the date in Sudbury has not changed yet. From 11:00 PM in Sudbury, it is already the next day in Rio de Janeiro.
Is the time difference between Rio de Janeiro and Sudbury the same all year?
No. Only Sudbury switches to summer time, so the gap changes twice a year. From November 1, 2026, Sudbury will be 2 hours behind Rio de Janeiro.
