Buenos Aires to Saint Charles, IL: time difference
Saint Charles, IL is 2 h behind Buenos Aires. 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.
Buenos Aires 15:43 3:43 PM Saint Charles, IL 13:43 1:43 PM You –:–
15:43 3:43 PM
Argentina Standard Time · UTC-3
☀️ 06:06 · 🌙 19:12
13:43 1:43 PM
Central Daylight Time · UTC-5
☀️ 07:12 · 🌙 18:05
·
−2 h
Saint Charles, IL is 2 h behind Buenos Aires.
When you, Buenos Aires and Saint Charles, 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
🇦🇷 Buenos Aires
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
🇺🇸 Saint Charles, 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
- Both working
- Right now
Time zones side by side
| Detail | 🇦🇷 Buenos Aires | 🇺🇸 Saint Charles, IL |
|---|---|---|
| Local time | 15:43 | 13:43 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Argentina Standard Time | Central Daylight Time |
| UTC offset | UTC-3 | UTC-5 |
| Offset from Buenos Aires | — | −2 h |
| IANA zone | America/Argentina/Buenos Aires | America/Chicago |
| Daylight saving | Not observed | On summer time → UTC-6, Nov 1, 01:00 |
| Sunrise | 06:06 | 07:12 |
| Sunset | 19:12 | 18:05 |
| Daylight | 13 h 6 min | 10 h 54 min |
| People on this clock | 2,891,082 | 70,329 |
Compare Buenos Aires with another city
More comparisons with Buenos Aires: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Buenos Aires and Saint Charles, IL: common questions
What is the time difference between Buenos Aires and Saint Charles, IL?
Saint Charles is 2 hours behind: it uses UTC−5, while Buenos Aires is on UTC−3.
What time is it in Saint Charles, IL, at the start of the working day in Buenos Aires?
The working day in Buenos Aires starts at 9:00 AM; in Saint Charles it is 7:00 AM at that moment.
If it is 6:00 PM in Buenos Aires, what time is it in Saint Charles, IL?
At 6:00 PM in Buenos Aires, clocks in Saint Charles show 4:00 PM.
Is there a time when both Buenos Aires and Saint Charles, IL, are at work?
Yes: from 11:00 AM to 6:00 PM in Buenos Aires (9:00 AM to 4:00 PM in Saint Charles), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Saint Charles, IL, compared with Buenos Aires?
The new day starts in Saint Charles later: until 2:00 AM in Buenos Aires, it is still the previous day there. From 10:00 PM in Saint Charles, Buenos Aires is already on the next day.
Does the time difference between Buenos Aires and Saint Charles, IL, change?
Yes. The clocks change only in Saint Charles. From November 1, 2026, Saint Charles will be 3 hours behind Buenos Aires.
