Rio de Janeiro to Northampton, MA: time difference
Northampton, MA 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 18:48 6:48 PM Northampton, MA 17:48 5:48 PM You –:–
18:48 6:48 PM
Brasilia Standard Time · UTC-3
☀️ 05:11 · 🌙 18:04
17:48 5:48 PM
Eastern Daylight Time · UTC-4
☀️ 07:19 · 🌙 17:51
·
−1 h
Northampton, MA is 1 h behind Rio de Janeiro.
When you, Rio de Janeiro and Northampton, MA 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
🇺🇸 Northampton, MA
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 | 🇺🇸 Northampton, MA |
|---|---|---|
| Local time | 18:48 | 17:48 |
| Local date | Wednesday, October 28, 2026 | Wednesday, October 28, 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 | 05:11 | 07:19 |
| Sunset | 18:04 | 17:51 |
| Daylight | 12 h 53 min | 10 h 31 min |
| People on this clock | 6,211,223 | 28,549 |
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 Northampton, MA: common questions
How many hours behind Rio de Janeiro is Northampton, MA?
The clocks in Northampton 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 Northampton, MA?
At 9:00 AM in Rio de Janeiro, clocks in Northampton show 8:00 AM.
What time is it in Northampton, MA, at the end of the working day in Rio de Janeiro?
The working day in Rio de Janeiro ends at 6:00 PM; in Northampton it is 5:00 PM at that moment.
When is a good time to call Northampton, MA, from Rio de Janeiro?
Between 10:00 AM and 6:00 PM in Rio de Janeiro – that is 9:00 AM to 5:00 PM in Northampton – both places are within working hours (9:00 AM–6:00 PM).
When is it still the previous day in Northampton, MA?
Until 1:00 AM in Rio de Janeiro it is still the previous day in Northampton. The other way round, from 11:00 PM in Northampton it is already the next day in Rio de Janeiro.
Is the time difference between Rio de Janeiro and Northampton, MA, the same all year?
No. Only Northampton switches to summer time, so the gap changes twice a year. From November 1, 2026, Northampton will be 2 hours behind Rio de Janeiro.
