Greenfield, OH to Rio de Janeiro: time difference
Rio de Janeiro is 1 h ahead of Greenfield, OH. 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.
Greenfield, OH 10:40 10:40 AM Rio de Janeiro 11:40 11:40 AM You –:–
10:40 10:40 AM
Eastern Daylight Time · UTC-4
☀️ 07:49 · 🌙 18:49
11:40 11:40 AM
Brasilia Standard Time · UTC-3
☀️ 05:17 · 🌙 18:00
·
+1 h
Rio de Janeiro is 1 h ahead of Greenfield, OH.
When you, Greenfield, OH 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
🇺🇸 Greenfield, OH
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 | 🇺🇸 Greenfield, OH | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 10:40 | 11:40 |
| 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 Greenfield, OH | — | +1 h |
| IANA zone | America/New York | America/Sao Paulo |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | Not observed |
| Sunrise | 07:49 | 05:17 |
| Sunset | 18:49 | 18:00 |
| Daylight | 11 h | 12 h 43 min |
| People on this clock | 17,768 | 6,211,223 |
Compare Greenfield, OH with another city
More comparisons with Greenfield, OH: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Greenfield, OH and Rio de Janeiro: common questions
How many hours ahead of Greenfield, OH, is Rio de Janeiro?
The clocks in Rio de Janeiro are 1 hour ahead of those in Greenfield (UTC−3 and UTC−4).
What time is it in Rio de Janeiro at the start of the working day in Greenfield, OH?
The working day in Greenfield 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 Greenfield, OH?
When it is 6:00 PM in Greenfield, it is 7:00 PM in Rio de Janeiro.
Is there a time when both Greenfield, OH, and Rio de Janeiro are at work?
Yes: from 9:00 AM to 5:00 PM in Greenfield (10:00 AM to 6:00 PM in Rio de Janeiro), the working days (9:00 AM–6:00 PM) overlap.
From what time in Greenfield, OH, is it tomorrow in Rio de Janeiro?
Once it is 11:00 PM in Greenfield, the date in Rio de Janeiro has already changed. Until 1:00 AM in Rio de Janeiro, it is still the previous day in Greenfield.
Is the time difference between Greenfield, OH, and Rio de Janeiro the same all year?
No. Only Greenfield switches to summer time, so the gap changes twice a year. From November 1, 2026, Rio de Janeiro will be 2 hours ahead of Greenfield.
