Rio de Janeiro to Portsmouth, OH: time difference
Portsmouth, 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 22:31 10:31 PM Portsmouth, OH 21:31 9:31 PM You –:–
22:31 10:31 PM
Brasilia Standard Time · UTC-3
☀️ 05:17 · 🌙 18:00
21:31 9:31 PM
Eastern Daylight Time · UTC-4
☀️ 07:47 · 🌙 18:48
·
−1 h
Portsmouth, OH is 1 h behind Rio de Janeiro.
When you, Rio de Janeiro and Portsmouth, 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
🇺🇸 Portsmouth, 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 | 🇺🇸 Portsmouth, OH |
|---|---|---|
| Local time | 22:31 | 21:31 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 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 | 05:17 | 07:47 |
| Sunset | 18:00 | 18:48 |
| Daylight | 12 h 43 min | 11 h 1 min |
| People on this clock | 6,211,223 | 95,535 |
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 Portsmouth, OH: common questions
How many hours behind Rio de Janeiro is Portsmouth, OH?
The clocks in Portsmouth are 1 hour behind those in Rio de Janeiro (UTC−4 and UTC−3).
If it is 9:00 AM in Rio de Janeiro, what time is it in Portsmouth, OH?
At 9:00 AM in Rio de Janeiro, clocks in Portsmouth show 8:00 AM.
If it is 6:00 PM in Rio de Janeiro, what time is it in Portsmouth, OH?
At 6:00 PM in Rio de Janeiro, clocks in Portsmouth show 5:00 PM.
When do working hours in Rio de Janeiro and in Portsmouth, 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 Portsmouth.
Until what time in Rio de Janeiro is it still yesterday in Portsmouth, OH?
Before 1:00 AM in Rio de Janeiro, the date in Portsmouth has not changed yet. From 11:00 PM in Portsmouth, it is already the next day in Rio de Janeiro.
Does the time difference between Rio de Janeiro and Portsmouth, OH, change?
Yes. The clocks change only in Portsmouth. From November 1, 2026, Portsmouth will be 2 hours behind Rio de Janeiro.
