Peterborough to Rio de Janeiro: time difference
Rio de Janeiro is 1 h ahead of Peterborough. Live clocks for both, the working hours they share, and how each one sits against your own time.
🇧🇷 Rio de Janeiro, Brazil
03
- Brasilia Standard Time
- UTC-3
- Golden hour
☀️ 05:18 · 🌙 17:59 · 12 h 41 min
+1 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Peterborough 04:42 4:42 AM Rio de Janeiro 05:42 5:42 AM You –:–
04:42 4:42 AM
Eastern Daylight Time · UTC-4
☀️ 07:34 · 🌙 18:24
05:42 5:42 AM
Brasilia Standard Time · UTC-3
☀️ 05:18 · 🌙 17:59
·
+1 h
Rio de Janeiro is 1 h ahead of Peterborough.
When you, Peterborough 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
🇨🇦 Peterborough
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 | 🇨🇦 Peterborough | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 04:42 | 05:42 |
| 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 Peterborough | — | +1 h |
| IANA zone | America/Toronto | America/Sao Paulo |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | Not observed |
| Sunrise | 07:34 | 05:18 |
| Sunset | 18:24 | 17:59 |
| Daylight | 10 h 50 min | 12 h 41 min |
| People on this clock | 81,032 | 6,211,223 |
Compare Peterborough with another city
More comparisons with Peterborough: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Peterborough and Rio de Janeiro: common questions
How far ahead of Peterborough is Rio de Janeiro?
Rio de Janeiro is 1 hour ahead of Peterborough: UTC−3 against UTC−4.
If it is 9:00 AM in Peterborough, what time is it in Rio de Janeiro?
At 9:00 AM in Peterborough, 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 Peterborough?
The working day in Peterborough ends at 6:00 PM; in Rio de Janeiro it is 7:00 PM at that moment.
When is a good time to call Rio de Janeiro from Peterborough?
Between 9:00 AM and 5:00 PM in Peterborough – 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 Peterborough is it tomorrow in Rio de Janeiro?
Once it is 11:00 PM in Peterborough, the date in Rio de Janeiro has already changed. Until 1:00 AM in Rio de Janeiro, it is still the previous day in Peterborough.
Is the time difference between Peterborough and Rio de Janeiro the same all year?
No. Only Peterborough switches to summer time, so the gap changes twice a year. From November 1, 2026, Rio de Janeiro will be 2 hours ahead of Peterborough.
