Roy, UT to Rio de Janeiro: time difference
Rio de Janeiro is 3 h ahead of Roy, UT. 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.
Roy, UT 21:42 9:42 PM Rio de Janeiro 00:42 12:42 AM You –:–
21:42 9:42 PM
Mountain Daylight Time · UTC-6
☀️ 07:36 · 🌙 18:55
00:42 12:42 AM
Brasilia Standard Time · UTC-3
☀️ 05:24 · 🌙 17:56
·
+3 h
Rio de Janeiro is 3 h ahead of Roy, UT.
When you, Roy, UT 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
🇺🇸 Roy, UT
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
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Time zones side by side
| Detail | 🇺🇸 Roy, UT | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 21:42 | 00:42 |
| Local date | Sunday, October 11, 2026 | Monday, October 12, 2026 |
| Time zone | Mountain Daylight Time | Brasilia Standard Time |
| UTC offset | UTC-6 | UTC-3 |
| Offset from Roy, UT | — | +3 h |
| IANA zone | America/Denver | America/Sao Paulo |
| Daylight saving | On summer time → UTC-7, Nov 1, 01:00 | Not observed |
| Sunrise | 07:36 | 05:24 |
| Sunset | 18:55 | 17:56 |
| Daylight | 11 h 19 min | 12 h 32 min |
| People on this clock | 39,306 | 6,211,223 |
Compare Roy, UT with another city
More comparisons with Roy, UT: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Roy, UT and Rio de Janeiro: common questions
How many hours ahead of Roy, UT, is Rio de Janeiro?
The clocks in Rio de Janeiro are 3 hours ahead of those in Roy (UTC−3 and UTC−6).
What time is it in Rio de Janeiro when it is 9:00 AM in Roy, UT?
When it is 9:00 AM in Roy, it is 12:00 PM in Rio de Janeiro.
What time is it in Rio de Janeiro at the end of the working day in Roy, UT?
The working day in Roy ends at 6:00 PM; in Rio de Janeiro it is 9:00 PM at that moment.
When is a good time to call Rio de Janeiro from Roy, UT?
Between 9:00 AM and 3:00 PM in Roy – that is 12:00 PM to 6:00 PM in Rio de Janeiro – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in Rio de Janeiro compared with Roy, UT?
The new day starts in Rio de Janeiro earlier: at 9:00 PM in Roy it is already midnight there. Until 3:00 AM in Rio de Janeiro, Roy is still on the previous day.
Is the time difference between Roy, UT, and Rio de Janeiro the same all year?
No. Only Roy switches to summer time, so the gap changes twice a year. From November 1, 2026, Rio de Janeiro will be 4 hours ahead of Roy.
