Cumming, GA to Rio de Janeiro: time difference
Rio de Janeiro is 1 h ahead of Cumming, 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.
Cumming, GA 12:18 12:18 PM Rio de Janeiro 13:18 1:18 PM You –:–
12:18 12:18 PM
Eastern Daylight Time · UTC-4
☀️ 07:46 · 🌙 18:58
13:18 1:18 PM
Brasilia Standard Time · UTC-3
☀️ 05:17 · 🌙 18:00
·
+1 h
Rio de Janeiro is 1 h ahead of Cumming, GA.
When you, Cumming, 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
🇺🇸 Cumming, 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 | 🇺🇸 Cumming, GA | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 12:18 | 13:18 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Eastern Daylight Time | Brasilia Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Cumming, 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 | 07:46 | 05:17 |
| Sunset | 18:58 | 18:00 |
| Daylight | 11 h 11 min | 12 h 43 min |
| People on this clock | 5,718 | 6,211,223 |
Compare Cumming, GA with another city
More comparisons with Cumming, GA: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Cumming, GA and Rio de Janeiro: common questions
How many hours ahead of Cumming, GA, is Rio de Janeiro?
The clocks in Rio de Janeiro are 1 hour ahead of those in Cumming (UTC−3 and UTC−4).
If it is 9:00 AM in Cumming, GA, what time is it in Rio de Janeiro?
At 9:00 AM in Cumming, clocks in Rio de Janeiro show 10:00 AM.
What time is it in Rio de Janeiro at the end of the working day in Cumming, GA?
The working day in Cumming ends at 6:00 PM; in Rio de Janeiro it is 7:00 PM at that moment.
When do working hours in Cumming, 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 Cumming, which is 10:00 AM to 6:00 PM in Rio de Janeiro.
When does the date change in Rio de Janeiro compared with Cumming, GA?
The new day starts in Rio de Janeiro earlier: at 11:00 PM in Cumming it is already midnight there. Until 1:00 AM in Rio de Janeiro, Cumming is still on the previous day.
Is the time difference between Cumming, GA, and Rio de Janeiro the same all year?
No. Only Cumming switches to summer time, so the gap changes twice a year. From November 1, 2026, Rio de Janeiro will be 2 hours ahead of Cumming.
