College Park, MD to Rio de Janeiro: time difference
Rio de Janeiro is 1 h ahead of College Park, MD. 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.
College Park, MD 15:00 3:00 PM Rio de Janeiro 16:00 4:00 PM You –:–
15:00 3:00 PM
Eastern Daylight Time · UTC-4
☀️ 07:13 · 🌙 18:38
16:00 4:00 PM
Brasilia Standard Time · UTC-3
☀️ 05:26 · 🌙 17:55
·
+1 h
Rio de Janeiro is 1 h ahead of College Park, MD.
When you, College Park, MD 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
🇺🇸 College Park, MD
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 | 🇺🇸 College Park, MD | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 15:00 | 16:00 |
| 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 College Park, MD | — | +1 h |
| IANA zone | America/New York | America/Sao Paulo |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | Not observed |
| Sunrise | 07:13 | 05:26 |
| Sunset | 18:38 | 17:55 |
| Daylight | 11 h 25 min | 12 h 30 min |
| People on this clock | 34,740 | 6,211,223 |
Compare College Park, MD with another city
More comparisons with College Park, MD: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
College Park, MD and Rio de Janeiro: common questions
What is the time difference between College Park, MD, and Rio de Janeiro?
Rio de Janeiro is 1 hour ahead: it uses UTC−3, while College Park is on UTC−4.
If it is 9:00 AM in College Park, MD, what time is it in Rio de Janeiro?
At 9:00 AM in College Park, clocks in Rio de Janeiro show 10:00 AM.
If it is 6:00 PM in College Park, MD, what time is it in Rio de Janeiro?
At 6:00 PM in College Park, clocks in Rio de Janeiro show 7:00 PM.
When do working hours in College Park, MD, and in Rio de Janeiro overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 5:00 PM in College Park, which is 10:00 AM to 6:00 PM in Rio de Janeiro.
From what time in College Park, MD, is it tomorrow in Rio de Janeiro?
Once it is 11:00 PM in College Park, the date in Rio de Janeiro has already changed. Until 1:00 AM in Rio de Janeiro, it is still the previous day in College Park.
Does the time gap between College Park, MD, and Rio de Janeiro change during the year?
Yes – daylight saving time is used in College Park but not in Rio de Janeiro. From November 1, 2026, Rio de Janeiro will be 2 hours ahead of College Park.
