Chicago to Commerce City time converter

Commerce City is 1 hour behind Chicago. When it is 9:00 AM in Chicago, it is 8:00 AM in Commerce City.

Chicago CDT

Sunday, October 18, 2026

Commerce City MDT

Sunday, October 18, 2026

Illinois, United States
Sun, Oct 18
CDTUTC-5
Colorado, United States
Sun, Oct 18
MDTUTC-6-1h
Finding your time zone…

3:45 PM in Chicago, Sunday, October 18, 2026

Shared working hours (9:00–18:00)

Chicago to Commerce City conversion table

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

ChicagoCommerce City
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 Commerce City).

Daylight saving time and the difference

The difference changes during the year because Chicago and Commerce City switch clocks on different dates:

  • Oct 18, 2026 – Nov 1, 2026: -1h
  • Nov 1, 2026 – Nov 1, 2026: ±0
  • Nov 1, 2026 – Mar 14, 2027: -1h
  • Mar 14, 2027 – Mar 14, 2027: -2h
  • Mar 14, 2027 – Oct 18, 2027: -1h

Distance

Chicago and Commerce City are 1,469 km (913 miles) apart in a straight line.

More conversions

Questions and answers

What is the time difference between Chicago and Commerce City?

Commerce City is 1 hour behind Chicago.

What time is it in Commerce City when it is 9 AM in Chicago?

When it is 9:00 AM in Chicago, it is 8:00 AM in Commerce City.

When is the best time to call Commerce City from Chicago?

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

Does the time difference between Chicago and Commerce City change?

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