Rock Hill, SC to Rio de Janeiro: time difference
Rio de Janeiro is 1 h ahead of Rock Hill, 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.
Rock Hill, SC 05:31 5:31 AM Rio de Janeiro 06:31 6:31 AM You –:–
05:31 5:31 AM
Eastern Daylight Time · UTC-4
☀️ 07:36 · 🌙 18:42
06:31 6:31 AM
Brasilia Standard Time · UTC-3
☀️ 05:15 · 🌙 18:01
·
+1 h
Rio de Janeiro is 1 h ahead of Rock Hill, SC.
When you, Rock Hill, 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
🇺🇸 Rock Hill, 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
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Time zones side by side
| Detail | 🇺🇸 Rock Hill, SC | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 05:31 | 06:31 |
| Local date | Thursday, October 22, 2026 | Thursday, October 22, 2026 |
| Time zone | Eastern Daylight Time | Brasilia Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Rock Hill, 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 | 07:36 | 05:15 |
| Sunset | 18:42 | 18:01 |
| Daylight | 11 h 6 min | 12 h 45 min |
| People on this clock | 74,102 | 6,211,223 |
Compare Rock Hill, SC with another city
More comparisons with Rock Hill, SC: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Rock Hill, SC and Rio de Janeiro: common questions
How far ahead of Rock Hill, SC, is Rio de Janeiro?
Rio de Janeiro is 1 hour ahead of Rock Hill: UTC−3 against UTC−4.
If it is 9:00 AM in Rock Hill, SC, what time is it in Rio de Janeiro?
At 9:00 AM in Rock Hill, clocks in Rio de Janeiro show 10:00 AM.
If it is 6:00 PM in Rock Hill, SC, what time is it in Rio de Janeiro?
At 6:00 PM in Rock Hill, clocks in Rio de Janeiro show 7:00 PM.
When is a good time to call Rio de Janeiro from Rock Hill, SC?
Between 9:00 AM and 5:00 PM in Rock Hill – that is 10:00 AM 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 Rock Hill, SC?
The new day starts in Rio de Janeiro earlier: at 11:00 PM in Rock Hill it is already midnight there. Until 1:00 AM in Rio de Janeiro, Rock Hill is still on the previous day.
Is the time difference between Rock Hill, SC, and Rio de Janeiro the same all year?
No. Only Rock Hill switches to summer time, so the gap changes twice a year. From November 1, 2026, Rio de Janeiro will be 2 hours ahead of Rock Hill.
