Sumter, SC to Rio de Janeiro: time difference
Rio de Janeiro is 1 h ahead of Sumter, SC. 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.
Sumter, SC 05:47 5:47 AM Rio de Janeiro 06:47 6:47 AM You –:–
05:47 5:47 AM
Eastern Daylight Time · UTC-4
☀️ 07:25 · 🌙 18:52
06:47 6:47 AM
Brasilia Standard Time · UTC-3
☀️ 05:24 · 🌙 17:56
·
+1 h
Rio de Janeiro is 1 h ahead of Sumter, SC.
When you, Sumter, SC 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
🇺🇸 Sumter, SC
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
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇺🇸 Sumter, SC | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 05:47 | 06:47 |
| Local date | Monday, October 12, 2026 | Monday, October 12, 2026 |
| Time zone | Eastern Daylight Time | Brasilia Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Sumter, SC | — | +1 h |
| IANA zone | America/New York | America/Sao Paulo |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | Not observed |
| Sunrise | 07:25 | 05:24 |
| Sunset | 18:52 | 17:56 |
| Daylight | 11 h 28 min | 12 h 32 min |
| People on this clock | 39,159 | 6,211,223 |
Compare Sumter, SC with another city
More comparisons with Sumter, SC: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Sumter, SC and Rio de Janeiro: common questions
How many hours ahead of Sumter, SC, is Rio de Janeiro?
The clocks in Rio de Janeiro are 1 hour ahead of those in Sumter (UTC−3 and UTC−4).
What time is it in Rio de Janeiro at the start of the working day in Sumter, SC?
The working day in Sumter starts at 9:00 AM; in Rio de Janeiro it is 10:00 AM at that moment.
What time is it in Rio de Janeiro when it is 6:00 PM in Sumter, SC?
When it is 6:00 PM in Sumter, it is 7:00 PM in Rio de Janeiro.
When do working hours in Sumter, SC, and in Rio de Janeiro overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 5:00 PM in Sumter, which is 10:00 AM to 6:00 PM in Rio de Janeiro.
When does the date change in Rio de Janeiro compared with Sumter, SC?
The new day starts in Rio de Janeiro earlier: at 11:00 PM in Sumter it is already midnight there. Until 1:00 AM in Rio de Janeiro, Sumter is still on the previous day.
Is the time difference between Sumter, SC, and Rio de Janeiro the same all year?
No. Only Sumter switches to summer time, so the gap changes twice a year. From November 1, 2026, Rio de Janeiro will be 2 hours ahead of Sumter.
