Alton, IL to Buenos Aires: time difference
Buenos Aires is 2 h ahead of Alton, IL. Live clocks for both, the working hours they share, and how each one sits against your own time.
+2 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Alton, IL 12:43 12:43 PM Buenos Aires 14:43 2:43 PM You –:–
12:43 12:43 PM
Central Daylight Time · UTC-5
☀️ 07:16 · 🌙 18:17
14:43 2:43 PM
Argentina Standard Time · UTC-3
☀️ 06:06 · 🌙 19:12
·
+2 h
Buenos Aires is 2 h ahead of Alton, IL.
When you, Alton, IL and Buenos Aires are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇸 Alton, IL
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
🇦🇷 Buenos Aires
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 1 1 AM
📍 Your time
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Time zones side by side
| Detail | 🇺🇸 Alton, IL | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 12:43 | 14:43 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Central Daylight Time | Argentina Standard Time |
| UTC offset | UTC-5 | UTC-3 |
| Offset from Alton, IL | — | +2 h |
| IANA zone | America/Chicago | America/Argentina/Buenos Aires |
| Daylight saving | On summer time → UTC-6, Nov 1, 01:00 | Not observed |
| Sunrise | 07:16 | 06:06 |
| Sunset | 18:17 | 19:12 |
| Daylight | 11 h 1 min | 13 h 6 min |
| People on this clock | 25,676 | 2,891,082 |
Compare Alton, IL with another city
More comparisons with Alton, IL: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Alton, IL and Buenos Aires: common questions
How far ahead of Alton, IL, is Buenos Aires?
Buenos Aires is 2 hours ahead of Alton: UTC−3 against UTC−5.
What time is it in Buenos Aires at the start of the working day in Alton, IL?
The working day in Alton starts at 9:00 AM; in Buenos Aires it is 11:00 AM at that moment.
If it is 6:00 PM in Alton, IL, what time is it in Buenos Aires?
At 6:00 PM in Alton, clocks in Buenos Aires show 8:00 PM.
When is a good time to call Buenos Aires from Alton, IL?
Between 9:00 AM and 4:00 PM in Alton – that is 11:00 AM to 6:00 PM in Buenos Aires – both places are within working hours (9:00 AM–6:00 PM).
When is it already the next day in Buenos Aires?
From 10:00 PM in Alton, IL, it is already the next day in Buenos Aires. The other way round, until 2:00 AM in Buenos Aires it is still the previous day in Alton.
Is the time difference between Alton, IL, and Buenos Aires the same all year?
No. Only Alton switches to summer time, so the gap changes twice a year. From November 1, 2026, Buenos Aires will be 3 hours ahead of Alton.
