Chicago to San Antonio de Los Altos time converter

San Antonio de Los Altos is 1 hour ahead of Chicago. When it is 9:00 AM in Chicago, it is 10:00 AM in San Antonio de Los Altos.

Chicago CDT

Wednesday, October 21, 2026

San Antonio de Los Altos VET

Wednesday, October 21, 2026

Illinois, United States
Wed, Oct 21
CDTUTC-5
Wed, Oct 21
VETUTC-4+1h
Finding your time zone…

7:05 PM in Chicago, Wednesday, October 21, 2026

Shared working hours (9:00–18:00)

Chicago to San Antonio de Los Altos conversion table

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

ChicagoSan Antonio de Los Altos
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 Chicago (10:00 AM – 6:00 PM in San Antonio de Los Altos).

Daylight saving time and the difference

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

  • Oct 21, 2026 – Nov 1, 2026: +1h
  • Nov 1, 2026 – Mar 14, 2027: +2h
  • Mar 14, 2027 – Oct 21, 2027: +1h

Distance

Chicago and San Antonio de Los Altos are 4,039 km (2,510 miles) apart in a straight line.

More conversions

Questions and answers

What is the time difference between Chicago and San Antonio de Los Altos?

San Antonio de Los Altos is 1 hour ahead of Chicago.

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

When it is 9:00 AM in Chicago, it is 10:00 AM in San Antonio de Los Altos.

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

Both sides are at work from 9:00 AM – 5:00 PM in Chicago (10:00 AM – 6:00 PM in San Antonio de Los Altos).

Does the time difference between Chicago and San Antonio de Los Altos change?

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