Sudbury to Rio de Janeiro: time difference
Rio de Janeiro is 1 h ahead of Sudbury. 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.
Sudbury 19:28 7:28 PM Rio de Janeiro 20:28 8:28 PM You –:–
19:28 7:28 PM
Eastern Daylight Time · UTC-4
☀️ 07:40 · 🌙 18:41
20:28 8:28 PM
Brasilia Standard Time · UTC-3
☀️ 05:22 · 🌙 17:57
·
+1 h
Rio de Janeiro is 1 h ahead of Sudbury.
When you, Sudbury 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
🇨🇦 Sudbury
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
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇨🇦 Sudbury | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 19:28 | 20:28 |
| Local date | Wednesday, October 14, 2026 | Wednesday, October 14, 2026 |
| Time zone | Eastern Daylight Time | Brasilia Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Sudbury | — | +1 h |
| IANA zone | America/Toronto | America/Sao Paulo |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | Not observed |
| Sunrise | 07:40 | 05:22 |
| Sunset | 18:41 | 17:57 |
| Daylight | 11 h | 12 h 35 min |
| People on this clock | 161,531 | 6,211,223 |
Compare Sudbury with another city
More comparisons with Sudbury: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Sudbury and Rio de Janeiro: common questions
How far ahead of Sudbury is Rio de Janeiro?
Rio de Janeiro is 1 hour ahead of Sudbury: UTC−3 against UTC−4.
If it is 9:00 AM in Sudbury, what time is it in Rio de Janeiro?
At 9:00 AM in Sudbury, clocks in Rio de Janeiro show 10:00 AM.
What time is it in Rio de Janeiro at the end of the working day in Sudbury?
The working day in Sudbury ends at 6:00 PM; in Rio de Janeiro it is 7:00 PM at that moment.
Is there a time when both Sudbury and Rio de Janeiro are at work?
Yes: from 9:00 AM to 5:00 PM in Sudbury (10:00 AM to 6:00 PM in Rio de Janeiro), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Rio de Janeiro compared with Sudbury?
The new day starts in Rio de Janeiro earlier: at 11:00 PM in Sudbury it is already midnight there. Until 1:00 AM in Rio de Janeiro, Sudbury is still on the previous day.
Is the time difference between Sudbury and Rio de Janeiro the same all year?
No. Only Sudbury switches to summer time, so the gap changes twice a year. From November 1, 2026, Rio de Janeiro will be 2 hours ahead of Sudbury.
