Cold Lake to Rio de Janeiro: time difference
Rio de Janeiro is 3 h ahead of Cold Lake. Live clocks for both, the working hours they share, and how each one sits against your own time.
+3 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Cold Lake 12:21 12:21 PM Rio de Janeiro 15:21 3:21 PM You –:–
12:21 12:21 PM
Mountain Daylight Time · UTC-6
☀️ 07:54 · 🌙 18:20
15:21 3:21 PM
Brasilia Standard Time · UTC-3
☀️ 05:19 · 🌙 17:58
·
+3 h
Rio de Janeiro is 3 h ahead of Cold Lake.
When you, Cold Lake 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
🇨🇦 Cold Lake
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
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 1 1 AM 2 2 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
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Time zones side by side
| Detail | 🇨🇦 Cold Lake | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 12:21 | 15:21 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 2026 |
| Time zone | Mountain Daylight Time | Brasilia Standard Time |
| UTC offset | UTC-6 | UTC-3 |
| Offset from Cold Lake | — | +3 h |
| IANA zone | America/Edmonton | America/Sao Paulo |
| Daylight saving | On summer time → UTC-7, Nov 1, 01:00 | Not observed |
| Sunrise | 07:54 | 05:19 |
| Sunset | 18:20 | 17:58 |
| Daylight | 10 h 26 min | 12 h 39 min |
| People on this clock | 11,595 | 6,211,223 |
Compare Cold Lake with another city
More comparisons with Cold Lake: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Cold Lake and Rio de Janeiro: common questions
How many hours ahead of Cold Lake is Rio de Janeiro?
The clocks in Rio de Janeiro are 3 hours ahead of those in Cold Lake (UTC−3 and UTC−6).
What time is it in Rio de Janeiro when it is 9:00 AM in Cold Lake?
When it is 9:00 AM in Cold Lake, it is 12:00 PM in Rio de Janeiro.
What time is it in Rio de Janeiro when it is 6:00 PM in Cold Lake?
When it is 6:00 PM in Cold Lake, it is 9:00 PM in Rio de Janeiro.
When do working hours in Cold Lake and in Rio de Janeiro overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 3:00 PM in Cold Lake, which is 12:00 PM to 6:00 PM in Rio de Janeiro.
From what time in Cold Lake is it tomorrow in Rio de Janeiro?
Once it is 9:00 PM in Cold Lake, the date in Rio de Janeiro has already changed. Until 3:00 AM in Rio de Janeiro, it is still the previous day in Cold Lake.
Is the time difference between Cold Lake and Rio de Janeiro the same all year?
Yes. Neither Cold Lake nor Rio de Janeiro switches to summer time, so the gap is always 3 hours.
