St. Charles to Buenos Aires time converter

Buenos Aires is 1 hour ahead of St. Charles. When it is 9:00 AM in St. Charles, it is 10:00 AM in Buenos Aires.

St. Charles EDT

Tuesday, October 20, 2026

Buenos Aires ART

Tuesday, October 20, 2026

St. Charles
Maryland, United States
Tue, Oct 20
EDTUTC-4
Buenos Aires
Argentina
Tue, Oct 20
ARTUTC-3+1h
Finding your time zone…
Shared working hours (9:00–18:00)

St. Charles to Buenos Aires conversion table

Every hour of today in St. Charles and the matching time in Buenos Aires. Light rows are typical working hours (9:00–18:00).

St. CharlesBuenos Aires
12:00 AM1:00 AM
1:00 AM2:00 AM
2:00 AM3:00 AM
3:00 AM4:00 AM
4:00 AM5:00 AM
5:00 AM6:00 AM
6:00 AM7:00 AM
7:00 AM8:00 AM
8:00 AM9:00 AM
9:00 AM10:00 AM
10:00 AM11:00 AM
11:00 AM12:00 PM
12:00 PM1:00 PM
1:00 PM2:00 PM
2:00 PM3:00 PM
3:00 PM4:00 PM
4:00 PM5:00 PM
5:00 PM6:00 PM
6:00 PM7:00 PM
7:00 PM8:00 PM
8:00 PM9:00 PM
9:00 PM10:00 PM
10:00 PM11:00 PM
11:00 PM12:00 AM+1 day

Best time to call or meet

Both sides are at work from 9:00 AM – 5:00 PM in St. Charles (10:00 AM – 6:00 PM in Buenos Aires).

Daylight saving time and the difference

The difference changes during the year because St. Charles and Buenos Aires switch clocks on different dates:

  • Oct 20, 2026 – Nov 1, 2026: +1h
  • Nov 1, 2026 – Mar 14, 2027: +2h
  • Mar 14, 2027 – Oct 20, 2027: +1h

Distance

St. Charles and Buenos Aires are 8,363 km (5,197 miles) apart in a straight line.

More conversions

Buenos Aires to St. CharlesSt. Charles to New YorkSt. Charles to LondonSt. Charles to Los AngelesSt. Charles to ChicagoSt. Charles to TorontoSt. Charles to São PauloSt. Charles to ParisSt. Charles to BerlinSt. Charles to MoscowSt. Charles to DubaiSt. Charles to New DelhiSt. Charles to Bangkok
New York to Buenos AiresLondon to Buenos AiresLos Angeles to Buenos AiresChicago to Buenos AiresToronto to Buenos AiresSão Paulo to Buenos AiresParis to Buenos AiresBerlin to Buenos AiresMoscow to Buenos AiresDubai to Buenos AiresNew Delhi to Buenos AiresBangkok to Buenos Aires

Questions and answers

What is the time difference between St. Charles and Buenos Aires?

Buenos Aires is 1 hour ahead of St. Charles.

What time is it in Buenos Aires when it is 9 AM in St. Charles?

When it is 9:00 AM in St. Charles, it is 10:00 AM in Buenos Aires.

When is the best time to call Buenos Aires from St. Charles?

Both sides are at work from 9:00 AM – 5:00 PM in St. Charles (10:00 AM – 6:00 PM in Buenos Aires).

Does the time difference between St. Charles and Buenos Aires change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.