Rio de Janeiro to St. Thomas: time difference
St. Thomas 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 23:21 11:21 PM St. Thomas 22:21 10:21 PM You –:–
23:21 11:21 PM
Brasilia Standard Time · UTC-3
☀️ 05:22 · 🌙 17:57
22:21 10:21 PM
Eastern Daylight Time · UTC-4
☀️ 07:37 · 🌙 18:46
·
−1 h
St. Thomas is 1 h behind Rio de Janeiro.
When you, Rio de Janeiro and St. Thomas 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
🇨🇦 St. Thomas
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 | 🇨🇦 St. Thomas |
|---|---|---|
| Local time | 23:21 | 22:21 |
| Local date | Wednesday, October 14, 2026 | Wednesday, October 14, 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/Toronto |
| Daylight saving | Not observed | On summer time → UTC-5, Nov 1, 01:00 |
| Sunrise | 05:22 | 07:37 |
| Sunset | 17:57 | 18:46 |
| Daylight | 12 h 35 min | 11 h 8 min |
| People on this clock | 6,211,223 | 38,909 |
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 St. Thomas: common questions
How many hours behind Rio de Janeiro is St. Thomas?
The clocks in St. Thomas 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 St. Thomas?
At 9:00 AM in Rio de Janeiro, clocks in St. Thomas show 8:00 AM.
If it is 6:00 PM in Rio de Janeiro, what time is it in St. Thomas?
At 6:00 PM in Rio de Janeiro, clocks in St. Thomas show 5:00 PM.
Is there a time when both Rio de Janeiro and St. Thomas are at work?
Yes: from 10:00 AM to 6:00 PM in Rio de Janeiro (9:00 AM to 5:00 PM in St. Thomas), the working days (9:00 AM–6:00 PM) overlap.
When is it still the previous day in St. Thomas?
Until 1:00 AM in Rio de Janeiro it is still the previous day in St. Thomas. The other way round, from 11:00 PM in St. Thomas it is already the next day in Rio de Janeiro.
Does the time difference between Rio de Janeiro and St. Thomas change?
Yes. The clocks change only in St. Thomas. From November 1, 2026, St. Thomas will be 2 hours behind Rio de Janeiro.
