Atlanta, GA to Rio de Janeiro: time difference
Rio de Janeiro is 1 h ahead of Atlanta, GA. Live clocks for both, the working hours they share, and how each one sits against your own time.
+1 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Atlanta, GA 00:40 12:40 AM Rio de Janeiro 01:40 1:40 AM You –:–
00:40 12:40 AM
Eastern Daylight Time · UTC-4
☀️ 07:37 · 🌙 19:11
01:40 1:40 AM
Brasilia Standard Time · UTC-3
☀️ 05:26 · 🌙 17:55
·
+1 h
Rio de Janeiro is 1 h ahead of Atlanta, GA.
When you, Atlanta, GA 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
🇺🇸 Atlanta, GA
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
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
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Time zones side by side
| Detail | 🇺🇸 Atlanta, GA | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 00:40 | 01:40 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Eastern Daylight Time | Brasilia Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Atlanta, GA | — | +1 h |
| IANA zone | America/New York | America/Sao Paulo |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | Not observed |
| Sunrise | 07:37 | 05:26 |
| Sunset | 19:11 | 17:55 |
| Daylight | 11 h 34 min | 12 h 30 min |
| People on this clock | 510,823 | 6,211,223 |
Compare Atlanta, GA with another city
More comparisons with Atlanta, GA: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Atlanta, GA and Rio de Janeiro: common questions
What is the time difference between Atlanta, GA, and Rio de Janeiro?
Rio de Janeiro is 1 hour ahead: it uses UTC−3, while Atlanta is on UTC−4.
What time is it in Rio de Janeiro when it is 9:00 AM in Atlanta, GA?
When it is 9:00 AM in Atlanta, it is 10:00 AM in Rio de Janeiro.
What time is it in Rio de Janeiro when it is 6:00 PM in Atlanta, GA?
When it is 6:00 PM in Atlanta, it is 7:00 PM in Rio de Janeiro.
When do working hours in Atlanta, GA, and in Rio de Janeiro overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 5:00 PM in Atlanta, which is 10:00 AM to 6:00 PM in Rio de Janeiro.
From what time in Atlanta, GA, is it tomorrow in Rio de Janeiro?
Once it is 11:00 PM in Atlanta, the date in Rio de Janeiro has already changed. Until 1:00 AM in Rio de Janeiro, it is still the previous day in Atlanta.
Does the time difference between Atlanta, GA, and Rio de Janeiro change?
Yes. The clocks change only in Atlanta. From November 1, 2026, Rio de Janeiro will be 2 hours ahead of Atlanta.
