Sarnia to Sao Paulo: time difference
Sao Paulo is 1 h ahead of Sarnia. 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.
Sarnia 20:38 8:38 PM Sao Paulo 21:38 9:38 PM You –:–
20:38 8:38 PM
Eastern Daylight Time · UTC-4
☀️ 07:42 · 🌙 18:50
21:38 9:38 PM
Brasilia Standard Time · UTC-3
☀️ 05:35 · 🌙 18:11
·
+1 h
Sao Paulo is 1 h ahead of Sarnia.
When you, Sarnia and Sao Paulo are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇨🇦 Sarnia
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
🇧🇷 Sao Paulo
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 | 🇨🇦 Sarnia | 🇧🇷 Sao Paulo |
|---|---|---|
| Local time | 20:38 | 21:38 |
| Local date | Wednesday, October 14, 2026 | Wednesday, October 14, 2026 |
| Time zone | Eastern Daylight Time | Brasilia Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Sarnia | — | +1 h |
| IANA zone | America/Toronto | America/Sao Paulo |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | Not observed |
| Sunrise | 07:42 | 05:35 |
| Sunset | 18:50 | 18:11 |
| Daylight | 11 h 8 min | 12 h 36 min |
| People on this clock | 71,594 | 11,451,999 |
Compare Sarnia with another city
More comparisons with Sarnia: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Sarnia and Sao Paulo: common questions
How many hours ahead of Sarnia is Sao Paulo?
The clocks in Sao Paulo are 1 hour ahead of those in Sarnia (UTC−3 and UTC−4).
What time is it in Sao Paulo at the start of the working day in Sarnia?
The working day in Sarnia starts at 9:00 AM; in Sao Paulo it is 10:00 AM at that moment.
What time is it in Sao Paulo at the end of the working day in Sarnia?
The working day in Sarnia ends at 6:00 PM; in Sao Paulo it is 7:00 PM at that moment.
Is there a time when both Sarnia and Sao Paulo are at work?
Yes: from 9:00 AM to 5:00 PM in Sarnia (10:00 AM to 6:00 PM in Sao Paulo), the working days (9:00 AM–6:00 PM) overlap.
From what time in Sarnia is it tomorrow in Sao Paulo?
Once it is 11:00 PM in Sarnia, the date in Sao Paulo has already changed. Until 1:00 AM in Sao Paulo, it is still the previous day in Sarnia.
Does the time difference between Sarnia and Sao Paulo change?
Yes. The clocks change only in Sarnia. From November 1, 2026, Sao Paulo will be 2 hours ahead of Sarnia.
