Chicago to San Marcos time converter

San Marcos is 1 hour behind Chicago. When it is 9:00 AM in Chicago, it is 8:00 AM in San Marcos.

Chicago CDT

Wednesday, October 21, 2026

San Marcos CST

Wednesday, October 21, 2026

Chicago
Illinois, United States
Wed, Oct 21
CDTUTC-5
San Marcos
El Salvador
Wed, Oct 21
CSTUTC-6-1h
Finding your time zone…
Shared working hours (9:00–18:00)

Chicago to San Marcos conversion table

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

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

Best time to call or meet

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

Daylight saving time and the difference

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

  • Oct 21, 2026 – Nov 1, 2026: -1h
  • Nov 1, 2026 – Mar 14, 2027: ±0
  • Mar 14, 2027 – Oct 21, 2027: -1h

Distance

Chicago and San Marcos are 3,138 km (1,950 miles) apart in a straight line.

More conversions

San Marcos to ChicagoChicago to New YorkChicago to LondonChicago to Los AngelesChicago to TorontoChicago to São PauloChicago to ParisChicago to BerlinChicago to MoscowChicago to DubaiChicago to New DelhiChicago to BangkokChicago to Singapore
New York to San MarcosLondon to San MarcosLos Angeles to San MarcosToronto to San MarcosSão Paulo to San MarcosParis to San MarcosBerlin to San MarcosMoscow to San MarcosDubai to San MarcosNew Delhi to San MarcosBangkok to San MarcosSingapore to San Marcos

Questions and answers

What is the time difference between Chicago and San Marcos?

San Marcos is 1 hour behind Chicago.

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

When it is 9:00 AM in Chicago, it is 8:00 AM in San Marcos.

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

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

Does the time difference between Chicago and San Marcos change?

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