Rio de Janeiro to Simpson Bay: time difference
Simpson Bay 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 10:56 10:56 AM Simpson Bay 09:56 9:56 AM You –:–
10:56 10:56 AM
Brasilia Standard Time · UTC-3
☀️ 05:26 · 🌙 17:55
09:56 9:56 AM
Atlantic Standard Time · UTC-4
☀️ 06:05 · 🌙 17:55
·
−1 h
Simpson Bay is 1 h behind Rio de Janeiro.
When you, Rio de Janeiro and Simpson Bay 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
🇸🇽 Simpson Bay
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 | 🇸🇽 Simpson Bay |
|---|---|---|
| Local time | 10:56 | 09:56 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Brasilia Standard Time | Atlantic Standard Time |
| UTC offset | UTC-3 | UTC-4 |
| Offset from Rio de Janeiro | — | −1 h |
| IANA zone | America/Sao Paulo | America/Lower Princes |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:26 | 06:05 |
| Sunset | 17:55 | 17:55 |
| Daylight | 12 h 30 min | 11 h 50 min |
| People on this clock | 6,211,223 | 6,000 |
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 Simpson Bay: common questions
What is the time difference between Rio de Janeiro and Simpson Bay?
Simpson Bay is 1 hour behind: it uses UTC−4, while Rio de Janeiro is on UTC−3.
What time is it in Simpson Bay 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 Simpson Bay.
What time is it in Simpson Bay when it is 6:00 PM in Rio de Janeiro?
When it is 6:00 PM in Rio de Janeiro, it is 5:00 PM in Simpson Bay.
When do working hours in Rio de Janeiro and in Simpson Bay 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 Simpson Bay.
When is it still the previous day in Simpson Bay?
Until 1:00 AM in Rio de Janeiro it is still the previous day in Simpson Bay. The other way round, from 11:00 PM in Simpson Bay it is already the next day in Rio de Janeiro.
Does the time difference between Rio de Janeiro and Simpson Bay change?
No. Neither place uses daylight saving time, so the difference stays 1 hour all year.
