Rio de Janeiro to Cambridge, OH: time difference
Cambridge, OH is 1 h behind Rio de Janeiro. Live clocks for both, the working hours they share, and how each one sits against your own time.
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Rio de Janeiro 11:44 11:44 AM Cambridge, OH 10:44 10:44 AM You –:–
11:44 11:44 AM
Brasilia Standard Time · UTC-3
☀️ 05:15 · 🌙 18:01
10:44 10:44 AM
Eastern Daylight Time · UTC-4
☀️ 07:45 · 🌙 18:38
·
−1 h
Cambridge, OH is 1 h behind Rio de Janeiro.
When you, Rio de Janeiro and Cambridge, OH are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇧🇷 Rio de Janeiro
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
🇺🇸 Cambridge, OH
23 11 PM 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇧🇷 Rio de Janeiro | 🇺🇸 Cambridge, OH |
|---|---|---|
| Local time | 11:44 | 10:44 |
| Local date | Thursday, October 22, 2026 | Thursday, October 22, 2026 |
| Time zone | Brasilia Standard Time | Eastern Daylight Time |
| UTC offset | UTC-3 | UTC-4 |
| Offset from Rio de Janeiro | — | −1 h |
| IANA zone | America/Sao Paulo | America/New York |
| Daylight saving | Not observed | On summer time → UTC-5, Nov 1, 01:00 |
| Sunrise | 05:15 | 07:45 |
| Sunset | 18:01 | 18:38 |
| Daylight | 12 h 45 min | 10 h 53 min |
| People on this clock | 6,211,223 | 105,162 |
Compare Rio de Janeiro with another city
More comparisons with Rio de Janeiro: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Rio de Janeiro and Cambridge, OH: common questions
How many hours behind Rio de Janeiro is Cambridge, OH?
The clocks in Cambridge are 1 hour behind those in Rio de Janeiro (UTC−4 and UTC−3).
What time is it in Cambridge, OH, at the start of the working day in Rio de Janeiro?
The working day in Rio de Janeiro starts at 9:00 AM; in Cambridge it is 8:00 AM at that moment.
What time is it in Cambridge, OH, when it is 6:00 PM in Rio de Janeiro?
When it is 6:00 PM in Rio de Janeiro, it is 5:00 PM in Cambridge.
When do working hours in Rio de Janeiro and in Cambridge, OH, overlap?
Working hours (9:00 AM–6:00 PM) overlap from 10:00 AM to 6:00 PM in Rio de Janeiro, which is 9:00 AM to 5:00 PM in Cambridge.
When is it still the previous day in Cambridge, OH?
Until 1:00 AM in Rio de Janeiro it is still the previous day in Cambridge. The other way round, from 11:00 PM in Cambridge it is already the next day in Rio de Janeiro.
Does the time difference between Rio de Janeiro and Cambridge, OH, change?
Yes. The clocks change only in Cambridge. From November 1, 2026, Cambridge will be 2 hours behind Rio de Janeiro.
