Sao Paulo to San Juan: time difference
San Juan is 1 h behind Sao Paulo. 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.
Sao Paulo 23:59 11:59 PM San Juan 22:59 10:59 PM You –:–
23:59 11:59 PM
Brasilia Standard Time · UTC-3
☀️ 05:40 · 🌙 18:09
22:59 10:59 PM
Atlantic Standard Time · UTC-4
☀️ 06:17 · 🌙 18:08
·
−1 h
San Juan is 1 h behind Sao Paulo.
When you, Sao Paulo and San Juan are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇧🇷 Sao Paulo
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 Juan
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 | 🇧🇷 Sao Paulo | 🇵🇷 San Juan |
|---|---|---|
| Local time | 23:59 | 22:59 |
| Local date | Friday, October 9, 2026 | Friday, October 9, 2026 |
| Time zone | Brasilia Standard Time | Atlantic Standard Time |
| UTC offset | UTC-3 | UTC-4 |
| Offset from Sao Paulo | — | −1 h |
| IANA zone | America/Sao Paulo | America/Puerto Rico |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:40 | 06:17 |
| Sunset | 18:09 | 18:08 |
| Daylight | 12 h 29 min | 11 h 50 min |
| People on this clock | 11,451,999 | 322,854 |
Compare Sao Paulo with another city
More comparisons with Sao Paulo: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Sao Paulo and San Juan: common questions
What is the time difference between Sao Paulo and San Juan?
San Juan is 1 hour behind: it uses UTC−4, while Sao Paulo is on UTC−3.
If it is 9:00 AM in Sao Paulo, what time is it in San Juan?
At 9:00 AM in Sao Paulo, clocks in San Juan show 8:00 AM.
What time is it in San Juan at the end of the working day in Sao Paulo?
The working day in Sao Paulo ends at 6:00 PM; in San Juan it is 5:00 PM at that moment.
When do working hours in Sao Paulo and in San Juan overlap?
Working hours (9:00 AM–6:00 PM) overlap from 10:00 AM to 6:00 PM in Sao Paulo, which is 9:00 AM to 5:00 PM in San Juan.
Until what time in Sao Paulo is it still yesterday in San Juan?
Before 1:00 AM in Sao Paulo, the date in San Juan has not changed yet. From 11:00 PM in San Juan, it is already the next day in Sao Paulo.
Is the time difference between Sao Paulo and San Juan the same all year?
Yes. Neither Sao Paulo nor San Juan switches to summer time, so the gap is always 1 hour.
