Guelph to Rio de Janeiro: time difference
Rio de Janeiro is 1 h ahead of Guelph. 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.
Guelph 09:50 9:50 AM Rio de Janeiro 10:50 10:50 AM You –:–
09:50 9:50 AM
Eastern Daylight Time · UTC-4
☀️ 07:30 · 🌙 18:48
10:50 10:50 AM
Brasilia Standard Time · UTC-3
☀️ 05:26 · 🌙 17:55
·
+1 h
Rio de Janeiro is 1 h ahead of Guelph.
When you, Guelph 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
🇨🇦 Guelph
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 | 🇨🇦 Guelph | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 09:50 | 10:50 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Eastern Daylight Time | Brasilia Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Guelph | — | +1 h |
| IANA zone | America/Toronto | America/Sao Paulo |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | Not observed |
| Sunrise | 07:30 | 05:26 |
| Sunset | 18:48 | 17:55 |
| Daylight | 11 h 18 min | 12 h 30 min |
| People on this clock | 131,794 | 6,211,223 |
Compare Guelph with another city
More comparisons with Guelph: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Guelph and Rio de Janeiro: common questions
How far ahead of Guelph is Rio de Janeiro?
Rio de Janeiro is 1 hour ahead of Guelph: UTC−3 against UTC−4.
If it is 9:00 AM in Guelph, what time is it in Rio de Janeiro?
At 9:00 AM in Guelph, clocks in Rio de Janeiro show 10:00 AM.
If it is 6:00 PM in Guelph, what time is it in Rio de Janeiro?
At 6:00 PM in Guelph, clocks in Rio de Janeiro show 7:00 PM.
Is there a time when both Guelph and Rio de Janeiro are at work?
Yes: from 9:00 AM to 5:00 PM in Guelph (10:00 AM to 6:00 PM in Rio de Janeiro), the working days (9:00 AM–6:00 PM) overlap.
From what time in Guelph is it tomorrow in Rio de Janeiro?
Once it is 11:00 PM in Guelph, the date in Rio de Janeiro has already changed. Until 1:00 AM in Rio de Janeiro, it is still the previous day in Guelph.
Is the time difference between Guelph and Rio de Janeiro the same all year?
No. Only Guelph switches to summer time, so the gap changes twice a year. From November 1, 2026, Rio de Janeiro will be 2 hours ahead of Guelph.
