Sao Paulo to Alliston: time difference
Alliston 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 18:47 6:47 PM Alliston 17:47 5:47 PM You –:–
18:47 6:47 PM
Brasilia Standard Time · UTC-3
☀️ 05:35 · 🌙 18:11
17:47 5:47 PM
Eastern Daylight Time · UTC-4
☀️ 07:33 · 🌙 18:39
·
−1 h
Alliston is 1 h behind Sao Paulo.
When you, Sao Paulo and Alliston 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
🇨🇦 Alliston
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 | 🇨🇦 Alliston |
|---|---|---|
| Local time | 18:47 | 17:47 |
| Local date | Wednesday, October 14, 2026 | Wednesday, October 14, 2026 |
| Time zone | Brasilia Standard Time | Eastern Daylight Time |
| UTC offset | UTC-3 | UTC-4 |
| Offset from Sao Paulo | — | −1 h |
| IANA zone | America/Sao Paulo | America/Toronto |
| Daylight saving | Not observed | On summer time → UTC-5, Nov 1, 01:00 |
| Sunrise | 05:35 | 07:33 |
| Sunset | 18:11 | 18:39 |
| Daylight | 12 h 36 min | 11 h 5 min |
| People on this clock | 11,451,999 | — |
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 Alliston: common questions
What is the time difference between Sao Paulo and Alliston?
Alliston is 1 hour behind: it uses UTC−4, while Sao Paulo is on UTC−3.
What time is it in Alliston at the start of the working day in Sao Paulo?
The working day in Sao Paulo starts at 9:00 AM; in Alliston it is 8:00 AM at that moment.
What time is it in Alliston when it is 6:00 PM in Sao Paulo?
When it is 6:00 PM in Sao Paulo, it is 5:00 PM in Alliston.
When do working hours in Sao Paulo and in Alliston 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 Alliston.
Until what time in Sao Paulo is it still yesterday in Alliston?
Before 1:00 AM in Sao Paulo, the date in Alliston has not changed yet. From 11:00 PM in Alliston, it is already the next day in Sao Paulo.
Is the time difference between Sao Paulo and Alliston the same all year?
No. Only Alliston switches to summer time, so the gap changes twice a year. From November 1, 2026, Alliston will be 2 hours behind Sao Paulo.
