Chicago to Tres Arroyos time converter

Tres Arroyos is 2 hours ahead of Chicago. When it is 9:00 AM in Chicago, it is 11:00 AM in Tres Arroyos.

Chicago CDT

Monday, October 19, 2026

Tres Arroyos ART

Monday, October 19, 2026

Illinois, United States
Mon, Oct 19
CDTUTC-5
Argentina
Mon, Oct 19
ARTUTC-3+2h
Finding your time zone…

6:25 AM in Chicago, Monday, October 19, 2026

Shared working hours (9:00–18:00)

Chicago to Tres Arroyos conversion table

Every hour of today in Chicago and the matching time in Tres Arroyos. Light rows are typical working hours (9:00–18:00).

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

Best time to call or meet

Both sides are at work from 9:00 AM – 4:00 PM in Chicago (11:00 AM – 6:00 PM in Tres Arroyos).

Daylight saving time and the difference

The difference changes during the year because Chicago and Tres Arroyos switch clocks on different dates:

  • Oct 19, 2026 – Nov 1, 2026: +2h
  • Nov 1, 2026 – Mar 14, 2027: +3h
  • Mar 14, 2027 – Oct 19, 2027: +2h

Distance

Chicago and Tres Arroyos are 9,341 km (5,804 miles) apart in a straight line.

More conversions

Questions and answers

What is the time difference between Chicago and Tres Arroyos?

Tres Arroyos is 2 hours ahead of Chicago.

What time is it in Tres Arroyos when it is 9 AM in Chicago?

When it is 9:00 AM in Chicago, it is 11:00 AM in Tres Arroyos.

When is the best time to call Tres Arroyos from Chicago?

Both sides are at work from 9:00 AM – 4:00 PM in Chicago (11:00 AM – 6:00 PM in Tres Arroyos).

Does the time difference between Chicago and Tres Arroyos change?

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