Rio de Janeiro to Roy, UT: time difference
Roy, UT 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 01:46 1:46 AM Roy, UT 22:46 10:46 PM You –:–
01:46 1:46 AM
Brasilia Standard Time · UTC-3
☀️ 05:24 · 🌙 17:56
22:46 10:46 PM
Mountain Daylight Time · UTC-6
☀️ 07:36 · 🌙 18:55
·
−3 h
Roy, UT is 3 h behind Rio de Janeiro.
When you, Rio de Janeiro and Roy, UT 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
🇺🇸 Roy, UT
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 | 🇺🇸 Roy, UT |
|---|---|---|
| Local time | 01:46 | 22:46 |
| Local date | Monday, October 12, 2026 | Sunday, October 11, 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 | 05:24 | 07:36 |
| Sunset | 17:56 | 18:55 |
| Daylight | 12 h 32 min | 11 h 19 min |
| People on this clock | 6,211,223 | 39,306 |
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 Roy, UT: common questions
How far behind Rio de Janeiro is Roy, UT?
Roy is 3 hours behind Rio de Janeiro: UTC−6 against UTC−3.
What time is it in Roy, UT, 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 Roy.
What time is it in Roy, UT, at the end of the working day in Rio de Janeiro?
The working day in Rio de Janeiro ends at 6:00 PM; in Roy it is 3:00 PM at that moment.
When is a good time to call Roy, UT, from Rio de Janeiro?
Between 12:00 PM and 6:00 PM in Rio de Janeiro – that is 9:00 AM to 3:00 PM in Roy – both places are within working hours (9:00 AM–6:00 PM).
Until what time in Rio de Janeiro is it still yesterday in Roy, UT?
Before 3:00 AM in Rio de Janeiro, the date in Roy has not changed yet. From 9:00 PM in Roy, it is already the next day in Rio de Janeiro.
Is the time difference between Rio de Janeiro and Roy, UT, the same all year?
No. Only Roy switches to summer time, so the gap changes twice a year. From November 1, 2026, Roy will be 4 hours behind Rio de Janeiro.
