Rio de Janeiro to San Lorenzo: time difference
San Lorenzo 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 11:23 11:23 AM San Lorenzo 10:23 10:23 AM You –:–
11:23 11:23 AM
Brasilia Standard Time · UTC-3
☀️ 05:11 · 🌙 18:04
10:23 10:23 AM
Atlantic Standard Time · UTC-4
☀️ 06:22 · 🌙 17:54
·
−1 h
San Lorenzo is 1 h behind Rio de Janeiro.
When you, Rio de Janeiro and San Lorenzo 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
🇵🇷 San Lorenzo
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 | 🇵🇷 San Lorenzo |
|---|---|---|
| Local time | 11:23 | 10:23 |
| Local date | Wednesday, October 28, 2026 | Wednesday, October 28, 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/Puerto Rico |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:11 | 06:22 |
| Sunset | 18:04 | 17:54 |
| Daylight | 12 h 53 min | 11 h 32 min |
| People on this clock | 6,211,223 | 9,373 |
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 San Lorenzo: common questions
How far behind Rio de Janeiro is San Lorenzo?
San Lorenzo is 1 hour behind Rio de Janeiro: UTC−4 against UTC−3.
What time is it in San Lorenzo 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 San Lorenzo.
What time is it in San Lorenzo 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 San Lorenzo.
When do working hours in Rio de Janeiro and in San Lorenzo 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 San Lorenzo.
Until what time in Rio de Janeiro is it still yesterday in San Lorenzo?
Before 1:00 AM in Rio de Janeiro, the date in San Lorenzo has not changed yet. From 11:00 PM in San Lorenzo, it is already the next day in Rio de Janeiro.
Is the time difference between Rio de Janeiro and San Lorenzo the same all year?
Yes. Neither Rio de Janeiro nor San Lorenzo switches to summer time, so the gap is always 1 hour.
