🇧🇷 Rio de Janeiro, Brazil
00
- Brasilia Standard Time
- UTC-3
- Golden hour
☀️ 05:18 · 🌙 17:59 · 12 h 41 min
Rio de Janeiro to Portsmouth, NH: time difference
Portsmouth, NH 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 06:10 6:10 AM Portsmouth, NH 05:10 5:10 AM You –:–
06:10 6:10 AM
Brasilia Standard Time · UTC-3
☀️ 05:18 · 🌙 17:59
05:10 5:10 AM
Eastern Daylight Time · UTC-4
☀️ 07:02 · 🌙 17:55
·
−1 h
Portsmouth, NH is 1 h behind Rio de Janeiro.
When you, Rio de Janeiro and Portsmouth, NH 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, NH
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, NH |
|---|---|---|
| Local time | 06:10 | 05:10 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 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 | 05:18 | 07:02 |
| Sunset | 17:59 | 17:55 |
| Daylight | 12 h 41 min | 10 h 54 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, NH: common questions
How far behind Rio de Janeiro is Portsmouth, NH?
Portsmouth is 1 hour behind Rio de Janeiro: UTC−4 against UTC−3.
What time is it in Portsmouth, NH, at the start of the working day in Rio de Janeiro?
The working day in Rio de Janeiro starts at 9:00 AM; in Portsmouth it is 8:00 AM at that moment.
If it is 6:00 PM in Rio de Janeiro, what time is it in Portsmouth, NH?
At 6:00 PM in Rio de Janeiro, clocks in Portsmouth show 5:00 PM.
Is there a time when both Rio de Janeiro and Portsmouth, NH, are at work?
Yes: from 10:00 AM to 6:00 PM in Rio de Janeiro (9:00 AM to 5:00 PM in Portsmouth), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Portsmouth, NH, compared with Rio de Janeiro?
The new day starts in Portsmouth later: until 1:00 AM in Rio de Janeiro, it is still the previous day there. From 11:00 PM in Portsmouth, Rio de Janeiro is already on the next day.
Does the time difference between Rio de Janeiro and Portsmouth, NH, change?
Yes. The clocks change only in Portsmouth. From November 1, 2026, Portsmouth will be 2 hours behind Rio de Janeiro.
