Rio de Janeiro to Bozeman, MT: time difference
Bozeman, MT is 3 h behind Rio de Janeiro. 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.
Rio de Janeiro 05:38 5:38 AM Bozeman, MT 02:38 2:38 AM You –:–
05:38 5:38 AM
Brasilia Standard Time · UTC-3
☀️ 05:26 · 🌙 17:55
02:38 2:38 AM
Mountain Daylight Time · UTC-6
☀️ 07:35 · 🌙 18:49
·
−3 h
Bozeman, MT is 3 h behind Rio de Janeiro.
When you, Rio de Janeiro and Bozeman, MT are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇧🇷 Rio de Janeiro
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
🇺🇸 Bozeman, MT
21 9 PM 22 10 PM 23 11 PM 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇧🇷 Rio de Janeiro | 🇺🇸 Bozeman, MT |
|---|---|---|
| Local time | 05:38 | 02:38 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Brasilia Standard Time | Mountain Daylight Time |
| UTC offset | UTC-3 | UTC-6 |
| Offset from Rio de Janeiro | — | −3 h |
| IANA zone | America/Sao Paulo | America/Denver |
| Daylight saving | Not observed | On summer time → UTC-7, Nov 1, 01:00 |
| Sunrise | 05:26 | 07:35 |
| Sunset | 17:55 | 18:49 |
| Daylight | 12 h 30 min | 11 h 14 min |
| People on this clock | 6,211,223 | 53,293 |
Compare Rio de Janeiro with another city
More comparisons with Rio de Janeiro: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Rio de Janeiro and Bozeman, MT: common questions
How many hours behind Rio de Janeiro is Bozeman, MT?
The clocks in Bozeman are 3 hours behind those in Rio de Janeiro (UTC−6 and UTC−3).
What time is it in Bozeman, MT, when it is 9:00 AM in Rio de Janeiro?
When it is 9:00 AM in Rio de Janeiro, it is 6:00 AM in Bozeman.
If it is 6:00 PM in Rio de Janeiro, what time is it in Bozeman, MT?
At 6:00 PM in Rio de Janeiro, clocks in Bozeman show 3:00 PM.
Is there a time when both Rio de Janeiro and Bozeman, MT, are at work?
Yes: from 12:00 PM to 6:00 PM in Rio de Janeiro (9:00 AM to 3:00 PM in Bozeman), the working days (9:00 AM–6:00 PM) overlap.
Until what time in Rio de Janeiro is it still yesterday in Bozeman, MT?
Before 3:00 AM in Rio de Janeiro, the date in Bozeman has not changed yet. From 9:00 PM in Bozeman, it is already the next day in Rio de Janeiro.
Is the time difference between Rio de Janeiro and Bozeman, MT, the same all year?
No. Only Bozeman switches to summer time, so the gap changes twice a year. From November 1, 2026, Bozeman will be 4 hours behind Rio de Janeiro.
