Rio de Janeiro to Saint John Island: time difference
Saint John Island 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.
−1 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Rio de Janeiro 08:55 8:55 AM Saint John Island 07:55 7:55 AM You –:–
08:55 8:55 AM
Brasilia Standard Time · UTC-3
☀️ 05:26 · 🌙 17:55
07:55 7:55 AM
Atlantic Standard Time · UTC-4
☀️ 06:12 · 🌙 18:01
·
−1 h
Saint John Island is 1 h behind Rio de Janeiro.
When you, Rio de Janeiro and Saint John Island 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
🇻🇮 Saint John Island
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 | 🇻🇮 Saint John Island |
|---|---|---|
| Local time | 08:55 | 07:55 |
| 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/St Thomas |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:26 | 06:12 |
| Sunset | 17:55 | 18:01 |
| Daylight | 12 h 30 min | 11 h 49 min |
| People on this clock | 6,211,223 | 4,170 |
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 Saint John Island: common questions
How far behind Rio de Janeiro is Saint John Island?
Saint John Island is 1 hour behind Rio de Janeiro: UTC−4 against UTC−3.
If it is 9:00 AM in Rio de Janeiro, what time is it in Saint John Island?
At 9:00 AM in Rio de Janeiro, clocks in Saint John Island show 8:00 AM.
If it is 6:00 PM in Rio de Janeiro, what time is it in Saint John Island?
At 6:00 PM in Rio de Janeiro, clocks in Saint John Island show 5:00 PM.
Is there a time when both Rio de Janeiro and Saint John Island are at work?
Yes: from 10:00 AM to 6:00 PM in Rio de Janeiro (9:00 AM to 5:00 PM in Saint John Island), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Saint John Island compared with Rio de Janeiro?
The new day starts in Saint John Island later: until 1:00 AM in Rio de Janeiro, it is still the previous day there. From 11:00 PM in Saint John Island, Rio de Janeiro is already on the next day.
Does the time gap between Rio de Janeiro and Saint John Island change during the year?
No, the clocks change neither in Rio de Janeiro nor in Saint John Island, so the gap is 1 hour all year round.
