San Lorenzo to Rio de Janeiro: time difference
Rio de Janeiro is 1 h ahead of San Lorenzo. 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.
San Lorenzo 09:17 9:17 AM Rio de Janeiro 10:17 10:17 AM You –:–
09:17 9:17 AM
Atlantic Standard Time · UTC-4
☀️ 06:22 · 🌙 17:54
10:17 10:17 AM
Brasilia Standard Time · UTC-3
☀️ 05:11 · 🌙 18:04
·
+1 h
Rio de Janeiro is 1 h ahead of San Lorenzo.
When you, San Lorenzo and Rio de Janeiro are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇵🇷 San Lorenzo
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
🇧🇷 Rio de Janeiro
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 0 12 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇵🇷 San Lorenzo | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 09:17 | 10:17 |
| Local date | Wednesday, October 28, 2026 | Wednesday, October 28, 2026 |
| Time zone | Atlantic Standard Time | Brasilia Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from San Lorenzo | — | +1 h |
| IANA zone | America/Puerto Rico | America/Sao Paulo |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:22 | 05:11 |
| Sunset | 17:54 | 18:04 |
| Daylight | 11 h 32 min | 12 h 53 min |
| People on this clock | 9,373 | 6,211,223 |
Compare San Lorenzo with another city
More comparisons with San Lorenzo: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
San Lorenzo and Rio de Janeiro: common questions
What is the time difference between San Lorenzo and Rio de Janeiro?
Rio de Janeiro is 1 hour ahead: it uses UTC−3, while San Lorenzo is on UTC−4.
If it is 9:00 AM in San Lorenzo, what time is it in Rio de Janeiro?
At 9:00 AM in San Lorenzo, clocks in Rio de Janeiro show 10:00 AM.
If it is 6:00 PM in San Lorenzo, what time is it in Rio de Janeiro?
At 6:00 PM in San Lorenzo, clocks in Rio de Janeiro show 7:00 PM.
When is a good time to call Rio de Janeiro from San Lorenzo?
Between 9:00 AM and 5:00 PM in San Lorenzo – that is 10:00 AM to 6:00 PM in Rio de Janeiro – both places are within working hours (9:00 AM–6:00 PM).
When is it already the next day in Rio de Janeiro?
From 11:00 PM in San Lorenzo it is already the next day in Rio de Janeiro. The other way round, until 1:00 AM in Rio de Janeiro it is still the previous day in San Lorenzo.
Does the time difference between San Lorenzo and Rio de Janeiro change?
No. Neither place uses daylight saving time, so the difference stays 1 hour all year.
