Chicago to Columbine time converter

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

Chicago CDT

Sunday, October 18, 2026

Columbine 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…

11:25 AM in Chicago, Sunday, October 18, 2026

Shared working hours (9:00–18:00)

Chicago to Columbine conversion table

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

ChicagoColumbine
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 Columbine).

Daylight saving time and the difference

The difference changes during the year because Chicago and Columbine 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 Columbine are 1,487 km (924 miles) apart in a straight line.

More conversions

Questions and answers

What is the time difference between Chicago and Columbine?

Columbine is 1 hour behind Chicago.

What time is it in Columbine when it is 9 AM in Chicago?

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

When is the best time to call Columbine from Chicago?

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

Does the time difference between Chicago and Columbine change?

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