Norman, OK to Rio de Janeiro: time difference
Rio de Janeiro is 2 h ahead of Norman, OK. Live clocks for both, the working hours they share, and how each one sits against your own time.
🇧🇷 Rio de Janeiro, Brazil
01
- Brasilia Standard Time
- UTC-3
- Golden hour
☀️ 05:17 · 🌙 18:00 · 12 h 43 min
+2 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Norman, OK 03:37 3:37 AM Rio de Janeiro 05:37 5:37 AM You –:–
03:37 3:37 AM
Central Daylight Time · UTC-5
☀️ 07:41 · 🌙 18:50
05:37 5:37 AM
Brasilia Standard Time · UTC-3
☀️ 05:17 · 🌙 18:00
·
+2 h
Rio de Janeiro is 2 h ahead of Norman, OK.
When you, Norman, OK 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
🇺🇸 Norman, OK
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
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 1 1 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇺🇸 Norman, OK | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 03:37 | 05:37 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Central Daylight Time | Brasilia Standard Time |
| UTC offset | UTC-5 | UTC-3 |
| Offset from Norman, OK | — | +2 h |
| IANA zone | America/Chicago | America/Sao Paulo |
| Daylight saving | On summer time → UTC-6, Nov 1, 01:00 | Not observed |
| Sunrise | 07:41 | 05:17 |
| Sunset | 18:50 | 18:00 |
| Daylight | 11 h 9 min | 12 h 43 min |
| People on this clock | 102,827 | 6,211,223 |
Compare Norman, OK with another city
More comparisons with Norman, OK: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Norman, OK and Rio de Janeiro: common questions
How far ahead of Norman, OK, is Rio de Janeiro?
Rio de Janeiro is 2 hours ahead of Norman: UTC−3 against UTC−5.
If it is 9:00 AM in Norman, OK, what time is it in Rio de Janeiro?
At 9:00 AM in Norman, clocks in Rio de Janeiro show 11:00 AM.
If it is 6:00 PM in Norman, OK, what time is it in Rio de Janeiro?
At 6:00 PM in Norman, clocks in Rio de Janeiro show 8:00 PM.
Is there a time when both Norman, OK, and Rio de Janeiro are at work?
Yes: from 9:00 AM to 4:00 PM in Norman (11:00 AM to 6:00 PM in Rio de Janeiro), the working days (9:00 AM–6:00 PM) overlap.
When is it already the next day in Rio de Janeiro?
From 10:00 PM in Norman, OK, it is already the next day in Rio de Janeiro. The other way round, until 2:00 AM in Rio de Janeiro it is still the previous day in Norman.
Does the time difference between Norman, OK, and Rio de Janeiro change?
Yes. The clocks change only in Norman. From November 1, 2026, Rio de Janeiro will be 3 hours ahead of Norman.
