Rio de Janeiro to Mount Vernon, NY: time difference
Mount Vernon, NY 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 21:17 9:17 PM Mount Vernon, NY 20:17 8:17 PM You –:–
21:17 9:17 PM
Brasilia Standard Time · UTC-3
☀️ 05:17 · 🌙 18:00
20:17 8:17 PM
Eastern Daylight Time · UTC-4
☀️ 07:13 · 🌙 18:09
·
−1 h
Mount Vernon, NY is 1 h behind Rio de Janeiro.
When you, Rio de Janeiro and Mount Vernon, NY 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
🇺🇸 Mount Vernon, NY
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 | 🇺🇸 Mount Vernon, NY |
|---|---|---|
| Local time | 21:17 | 20:17 |
| 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 | 07:13 |
| Sunset | 18:00 | 18:09 |
| Daylight | 12 h 43 min | 10 h 56 min |
| People on this clock | 6,211,223 | 73,893 |
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 Mount Vernon, NY: common questions
How far behind Rio de Janeiro is Mount Vernon, NY?
Mount Vernon is 1 hour behind Rio de Janeiro: UTC−4 against UTC−3.
What time is it in Mount Vernon, NY, when it is 9:00 AM in Rio de Janeiro?
When it is 9:00 AM in Rio de Janeiro, it is 8:00 AM in Mount Vernon.
What time is it in Mount Vernon, NY, at the end of the working day in Rio de Janeiro?
The working day in Rio de Janeiro ends at 6:00 PM; in Mount Vernon it is 5:00 PM at that moment.
Is there a time when both Rio de Janeiro and Mount Vernon, NY, are at work?
Yes: from 10:00 AM to 6:00 PM in Rio de Janeiro (9:00 AM to 5:00 PM in Mount Vernon), the working days (9:00 AM–6:00 PM) overlap.
Until what time in Rio de Janeiro is it still yesterday in Mount Vernon, NY?
Before 1:00 AM in Rio de Janeiro, the date in Mount Vernon has not changed yet. From 11:00 PM in Mount Vernon, it is already the next day in Rio de Janeiro.
Does the time difference between Rio de Janeiro and Mount Vernon, NY, change?
Yes. The clocks change only in Mount Vernon. From November 1, 2026, Mount Vernon will be 2 hours behind Rio de Janeiro.
