Rio de Janeiro to St John: time difference
St John 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 07:17 7:17 AM St John 06:17 6:17 AM You –:–
07:17 7:17 AM
Brasilia Standard Time · UTC-3
☀️ 05:26 · 🌙 17:55
06:17 6:17 AM
Atlantic Standard Time · UTC-4
☀️ 06:12 · 🌙 18:01
·
−1 h
St John is 1 h behind Rio de Janeiro.
When you, Rio de Janeiro and St John 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 John
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 John |
|---|---|---|
| Local time | 07:17 | 06:17 |
| 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 | 2,743 |
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 John: common questions
How many hours behind Rio de Janeiro is St John?
The clocks in St John are 1 hour behind those in Rio de Janeiro (UTC−4 and UTC−3).
What time is it in St John 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 St John.
What time is it in St John 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 St John.
Is there a time when both Rio de Janeiro and St John 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 John), the working days (9:00 AM–6:00 PM) overlap.
When is it still the previous day in St John?
Until 1:00 AM in Rio de Janeiro it is still the previous day in St John. The other way round, from 11:00 PM in St John it is already the next day in Rio de Janeiro.
Is the time difference between Rio de Janeiro and St John the same all year?
Yes. Neither Rio de Janeiro nor St John switches to summer time, so the gap is always 1 hour.
