Chicago to San Antonio time converter

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

Chicago CDT

Tuesday, October 20, 2026

San Antonio CLST

Tuesday, October 20, 2026

Illinois, United States
Tue, Oct 20
CDTUTC-5
Tue, Oct 20
CLSTUTC-3+2h
Finding your time zone…

6:12 AM in Chicago, Tuesday, October 20, 2026

Shared working hours (9:00–18:00)

Chicago to San Antonio conversion table

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

ChicagoSan Antonio
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 San Antonio).

Daylight saving time and the difference

The difference changes during the year because Chicago and San Antonio switch clocks on different dates:

  • Oct 20, 2026 – Nov 1, 2026: +2h
  • Nov 1, 2026 – Mar 14, 2027: +3h
  • Mar 14, 2027 – Apr 3, 2027: +2h
  • Apr 3, 2027 – Sep 4, 2027: +1h
  • Sep 4, 2027 – Oct 20, 2027: +2h

Distance

Chicago and San Antonio are 8,548 km (5,311 miles) apart in a straight line.

More conversions

Questions and answers

What is the time difference between Chicago and San Antonio?

San Antonio is 2 hours ahead of Chicago.

What time is it in San Antonio when it is 9 AM in Chicago?

When it is 9:00 AM in Chicago, it is 11:00 AM in San Antonio.

When is the best time to call San Antonio from Chicago?

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

Does the time difference between Chicago and San Antonio change?

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