Islip, NY to Rio de Janeiro: time difference
Rio de Janeiro is 1 h ahead of Islip, NY. 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.
Islip, NY 02:56 2:56 AM Rio de Janeiro 03:56 3:56 AM You –:–
02:56 2:56 AM
Eastern Daylight Time · UTC-4
☀️ 07:08 · 🌙 18:10
03:56 3:56 AM
Brasilia Standard Time · UTC-3
☀️ 05:19 · 🌙 17:59
·
+1 h
Rio de Janeiro is 1 h ahead of Islip, NY.
When you, Islip, NY 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
🇺🇸 Islip, NY
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 | 🇺🇸 Islip, NY | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 02:56 | 03:56 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Eastern Daylight Time | Brasilia Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Islip, NY | — | +1 h |
| IANA zone | America/New York | America/Sao Paulo |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | Not observed |
| Sunrise | 07:08 | 05:19 |
| Sunset | 18:10 | 17:59 |
| Daylight | 11 h 2 min | 12 h 40 min |
| People on this clock | 339,938 | 6,211,223 |
Compare Islip, NY with another city
More comparisons with Islip, NY: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Islip, NY and Rio de Janeiro: common questions
What is the time difference between Islip, NY, and Rio de Janeiro?
Rio de Janeiro is 1 hour ahead: it uses UTC−3, while Islip is on UTC−4.
What time is it in Rio de Janeiro at the start of the working day in Islip, NY?
The working day in Islip starts at 9:00 AM; in Rio de Janeiro it is 10:00 AM at that moment.
If it is 6:00 PM in Islip, NY, what time is it in Rio de Janeiro?
At 6:00 PM in Islip, clocks in Rio de Janeiro show 7:00 PM.
When do working hours in Islip, NY, and in Rio de Janeiro overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 5:00 PM in Islip, which is 10:00 AM to 6:00 PM in Rio de Janeiro.
When does the date change in Rio de Janeiro compared with Islip, NY?
The new day starts in Rio de Janeiro earlier: at 11:00 PM in Islip it is already midnight there. Until 1:00 AM in Rio de Janeiro, Islip is still on the previous day.
Does the time difference between Islip, NY, and Rio de Janeiro change?
Yes. The clocks change only in Islip. From November 1, 2026, Rio de Janeiro will be 2 hours ahead of Islip.
