Sao Paulo to Alton, IL: time difference
Alton, IL is 2 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 15:52 3:52 PM Alton, IL 13:52 1:52 PM You –:–
15:52 3:52 PM
Brasilia Standard Time · UTC-3
☀️ 05:30 · 🌙 18:14
13:52 1:52 PM
Central Daylight Time · UTC-5
☀️ 07:16 · 🌙 18:17
·
−2 h
Alton, IL is 2 h behind Sao Paulo.
When you, Sao Paulo and Alton, IL 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
🇺🇸 Alton, IL
22 10 PM 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
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Time zones side by side
| Detail | 🇧🇷 Sao Paulo | 🇺🇸 Alton, IL |
|---|---|---|
| Local time | 15:52 | 13:52 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Brasilia Standard Time | Central Daylight Time |
| UTC offset | UTC-3 | UTC-5 |
| Offset from Sao Paulo | — | −2 h |
| IANA zone | America/Sao Paulo | America/Chicago |
| Daylight saving | Not observed | On summer time → UTC-6, Nov 1, 01:00 |
| Sunrise | 05:30 | 07:16 |
| Sunset | 18:14 | 18:17 |
| Daylight | 12 h 44 min | 11 h 1 min |
| People on this clock | 11,451,999 | 25,676 |
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 Alton, IL: common questions
How far behind Sao Paulo is Alton, IL?
Alton is 2 hours behind Sao Paulo: UTC−5 against UTC−3.
If it is 9:00 AM in Sao Paulo, what time is it in Alton, IL?
At 9:00 AM in Sao Paulo, clocks in Alton show 7:00 AM.
What time is it in Alton, IL, at the end of the working day in Sao Paulo?
The working day in Sao Paulo ends at 6:00 PM; in Alton it is 4:00 PM at that moment.
When do working hours in Sao Paulo and in Alton, IL, overlap?
Working hours (9:00 AM–6:00 PM) overlap from 11:00 AM to 6:00 PM in Sao Paulo, which is 9:00 AM to 4:00 PM in Alton.
When is it still the previous day in Alton, IL?
Until 2:00 AM in Sao Paulo it is still the previous day in Alton. The other way round, from 10:00 PM in Alton it is already the next day in Sao Paulo.
Is the time difference between Sao Paulo and Alton, IL, the same all year?
No. Only Alton switches to summer time, so the gap changes twice a year. From November 1, 2026, Alton will be 3 hours behind Sao Paulo.
