Buenos Aires to Upper Alton time converter

Upper Alton is 2 hours behind Buenos Aires. When it is 9:00 AM in Buenos Aires, it is 7:00 AM in Upper Alton.

Buenos Aires ART

Tuesday, October 20, 2026

Upper Alton CDT

Tuesday, October 20, 2026

Buenos Aires
Argentina
Tue, Oct 20
ARTUTC-3
Upper Alton
Illinois, United States
Tue, Oct 20
CDTUTC-5-2h
Finding your time zone…
Shared working hours (9:00–18:00)

Buenos Aires to Upper Alton conversion table

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

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

Best time to call or meet

Both sides are at work from 11:00 AM – 6:00 PM in Buenos Aires (9:00 AM – 4:00 PM in Upper Alton).

Daylight saving time and the difference

The difference changes during the year because Buenos Aires and Upper Alton switch clocks on different dates:

  • Oct 20, 2026 – Nov 1, 2026: -2h
  • Nov 1, 2026 – Mar 14, 2027: -3h
  • Mar 14, 2027 – Oct 20, 2027: -2h

Distance

Buenos Aires and Upper Alton are 8,805 km (5,471 miles) apart in a straight line.

More conversions

Upper Alton to Buenos AiresBuenos Aires to New YorkBuenos Aires to LondonBuenos Aires to Los AngelesBuenos Aires to ChicagoBuenos Aires to TorontoBuenos Aires to São PauloBuenos Aires to ParisBuenos Aires to BerlinBuenos Aires to MoscowBuenos Aires to DubaiBuenos Aires to New DelhiBuenos Aires to Bangkok
New York to Upper AltonLondon to Upper AltonLos Angeles to Upper AltonChicago to Upper AltonToronto to Upper AltonSão Paulo to Upper AltonParis to Upper AltonBerlin to Upper AltonMoscow to Upper AltonDubai to Upper AltonNew Delhi to Upper AltonBangkok to Upper Alton

Questions and answers

What is the time difference between Buenos Aires and Upper Alton?

Upper Alton is 2 hours behind Buenos Aires.

What time is it in Upper Alton when it is 9 AM in Buenos Aires?

When it is 9:00 AM in Buenos Aires, it is 7:00 AM in Upper Alton.

When is the best time to call Upper Alton from Buenos Aires?

Both sides are at work from 11:00 AM – 6:00 PM in Buenos Aires (9:00 AM – 4:00 PM in Upper Alton).

Does the time difference between Buenos Aires and Upper Alton change?

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