Rio de Janeiro to Las Piedras: time difference
Las Piedras 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 00:50 12:50 AM Las Piedras 23:50 11:50 PM You –:–
00:50 12:50 AM
Brasilia Standard Time · UTC-3
☀️ 05:19 · 🌙 17:59
23:50 11:50 PM
Atlantic Standard Time · UTC-4
☀️ 06:18 · 🌙 18:01
·
−1 h
Las Piedras is 1 h behind Rio de Janeiro.
When you, Rio de Janeiro and Las Piedras 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
🇵🇷 Las Piedras
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 | 🇵🇷 Las Piedras |
|---|---|---|
| Local time | 00:50 | 23:50 |
| Local date | Sunday, October 18, 2026 | Saturday, October 17, 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 | 05:19 | 06:18 |
| Sunset | 17:59 | 18:01 |
| Daylight | 12 h 40 min | 11 h 43 min |
| People on this clock | 6,211,223 | 38,000 |
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 Las Piedras: common questions
What is the time difference between Rio de Janeiro and Las Piedras?
Las Piedras is 1 hour behind: it uses UTC−4, while Rio de Janeiro is on UTC−3.
What time is it in Las Piedras 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 Las Piedras.
What time is it in Las Piedras at the end of the working day in Rio de Janeiro?
The working day in Rio de Janeiro ends at 6:00 PM; in Las Piedras it is 5:00 PM at that moment.
When is a good time to call Las Piedras from Rio de Janeiro?
Between 10:00 AM and 6:00 PM in Rio de Janeiro – that is 9:00 AM to 5:00 PM in Las Piedras – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in Las Piedras compared with Rio de Janeiro?
The new day starts in Las Piedras later: until 1:00 AM in Rio de Janeiro, it is still the previous day there. From 11:00 PM in Las Piedras, Rio de Janeiro is already on the next day.
Does the time difference between Rio de Janeiro and Las Piedras change?
No. Neither place uses daylight saving time, so the difference stays 1 hour all year.
