Chicago to Kościan time converter

Kościan is 7 hours ahead of Chicago. When it is 9:00 AM in Chicago, it is 4:00 PM in Kościan.

Chicago CDT

Sunday, October 18, 2026

Kościan CEST

Sunday, October 18, 2026

Illinois, United States
Sun, Oct 18
CDTUTC-5
Poland
Sun, Oct 18
CESTUTC+2+7h
Finding your time zone…

1:56 PM in Chicago, Sunday, October 18, 2026

Shared working hours (9:00–18:00)

Chicago to Kościan conversion table

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

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

Best time to call or meet

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

Daylight saving time and the difference

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

  • Oct 18, 2026 – Oct 24, 2026: +7h
  • Oct 24, 2026 – Nov 1, 2026: +6h
  • Nov 1, 2026 – Mar 14, 2027: +7h
  • Mar 14, 2027 – Mar 27, 2027: +6h
  • Mar 27, 2027 – Oct 18, 2027: +7h

Distance

Chicago and Kościan are 7,293 km (4,532 miles) apart in a straight line.

More conversions

Questions and answers

What is the time difference between Chicago and Kościan?

Kościan is 7 hours ahead of Chicago.

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

When it is 9:00 AM in Chicago, it is 4:00 PM in Kościan.

When is the best time to call Kościan from Chicago?

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

Does the time difference between Chicago and Kościan change?

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