Calgary to Rio Branco: time difference
Rio Branco is 1 h ahead of Calgary. 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.
Calgary 19:42 7:42 PM Rio Branco 20:42 8:42 PM You –:–
19:42 7:42 PM
Mountain Daylight Time · UTC-6
☀️ 08:36 · 🌙 18:05
20:42 8:42 PM
Acre Standard Time · UTC-5
☀️ 05:01 · 🌙 17:31
·
+1 h
Rio Branco is 1 h ahead of Calgary.
When you, Calgary and Rio Branco are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇨🇦 Calgary
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 Branco
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 | 🇨🇦 Calgary | 🇧🇷 Rio Branco |
|---|---|---|
| Local time | 19:42 | 20:42 |
| Local date | Thursday, November 5, 2026 | Thursday, November 5, 2026 |
| Time zone | Mountain Daylight Time | Acre Standard Time |
| UTC offset | UTC-6 | UTC-5 |
| Offset from Calgary | — | +1 h |
| IANA zone | America/Edmonton | America/Rio Branco |
| Daylight saving | On summer time | Not observed |
| Sunrise | 08:36 | 05:01 |
| Sunset | 18:05 | 17:31 |
| Daylight | 9 h 29 min | 12 h 30 min |
| People on this clock | 1,267,344 | 364,756 |
Compare Calgary with another city
More comparisons with Calgary: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Calgary and Rio Branco: common questions
How many hours ahead of Calgary is Rio Branco?
The clocks in Rio Branco are 1 hour ahead of those in Calgary (UTC−5 and UTC−6).
What time is it in Rio Branco when it is 9:00 AM in Calgary?
When it is 9:00 AM in Calgary, it is 10:00 AM in Rio Branco.
What time is it in Rio Branco at the end of the working day in Calgary?
The working day in Calgary ends at 6:00 PM; in Rio Branco it is 7:00 PM at that moment.
When do working hours in Calgary and in Rio Branco overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 5:00 PM in Calgary, which is 10:00 AM to 6:00 PM in Rio Branco.
From what time in Calgary is it tomorrow in Rio Branco?
Once it is 11:00 PM in Calgary, the date in Rio Branco has already changed. Until 1:00 AM in Rio Branco, it is still the previous day in Calgary.
Is the time difference between Calgary and Rio Branco the same all year?
Yes. Neither Calgary nor Rio Branco switches to summer time, so the gap is always 1 hour.
