Rio de Janeiro to Sint Nicolaas: time difference
Sint Nicolaas 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 05:00 5:00 AM Sint Nicolaas 04:00 4:00 AM You –:–
05:00 5:00 AM
Brasilia Standard Time · UTC-3
☀️ 05:26 · 🌙 17:55
04:00 4:00 AM
Atlantic Standard Time · UTC-4
☀️ 06:30 · 🌙 18:25
·
−1 h
Sint Nicolaas is 1 h behind Rio de Janeiro.
When you, Rio de Janeiro and Sint Nicolaas 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
🇦🇼 Sint Nicolaas
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 | 🇦🇼 Sint Nicolaas |
|---|---|---|
| Local time | 05:00 | 04:00 |
| 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/Aruba |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:26 | 06:30 |
| Sunset | 17:55 | 18:25 |
| Daylight | 12 h 30 min | 11 h 55 min |
| People on this clock | 6,211,223 | 18,000 |
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 Sint Nicolaas: common questions
What is the time difference between Rio de Janeiro and Sint Nicolaas?
Sint Nicolaas is 1 hour behind: it uses UTC−4, while Rio de Janeiro is on UTC−3.
What time is it in Sint Nicolaas at the start of the working day in Rio de Janeiro?
The working day in Rio de Janeiro starts at 9:00 AM; in Sint Nicolaas it is 8:00 AM at that moment.
What time is it in Sint Nicolaas at the end of the working day in Rio de Janeiro?
The working day in Rio de Janeiro ends at 6:00 PM; in Sint Nicolaas it is 5:00 PM at that moment.
Is there a time when both Rio de Janeiro and Sint Nicolaas are at work?
Yes: from 10:00 AM to 6:00 PM in Rio de Janeiro (9:00 AM to 5:00 PM in Sint Nicolaas), the working days (9:00 AM–6:00 PM) overlap.
Until what time in Rio de Janeiro is it still yesterday in Sint Nicolaas?
Before 1:00 AM in Rio de Janeiro, the date in Sint Nicolaas has not changed yet. From 11:00 PM in Sint Nicolaas, it is already the next day in Rio de Janeiro.
Does the time gap between Rio de Janeiro and Sint Nicolaas change during the year?
No, the clocks change neither in Rio de Janeiro nor in Sint Nicolaas, so the gap is 1 hour all year round.
