Koesan to Chicago time converter

Chicago is 14 hours behind Koesan. When it is 9:00 AM in Koesan, it is 7:00 PM (Sun, Oct 18) in Chicago.

Koesan KST

Monday, October 19, 2026

Chicago CDT

Sunday, October 18, 2026

Koesan
South Korea
Mon, Oct 19
KSTUTC+9
Chicago
Illinois, United States
Sun, Oct 18
CDTUTC-5-14h
Finding your time zone…
Shared working hours (9:00–18:00)

Koesan to Chicago conversion table

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

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

Best time to call or meet

Working hours don't overlap fully. The closest fit is 7:00 AM – 8:00 AM in Koesan (5:00 PM – 6:00 PM in Chicago): working hours on one side, early or late on the other.

Daylight saving time and the difference

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

  • Oct 19, 2026 – Nov 1, 2026: -14h
  • Nov 1, 2026 – Mar 14, 2027: -15h
  • Mar 14, 2027 – Oct 19, 2027: -14h

Distance

Koesan and Chicago are 10,557 km (6,560 miles) apart in a straight line.

More conversions

Chicago to KoesanKoesan to New YorkKoesan to LondonKoesan to Los AngelesKoesan to TorontoKoesan to São PauloKoesan to ParisKoesan to BerlinKoesan to MoscowKoesan to DubaiKoesan to New DelhiKoesan to BangkokKoesan to Singapore
New York to ChicagoLondon to ChicagoLos Angeles to ChicagoToronto to ChicagoSão Paulo to ChicagoParis to ChicagoBerlin to ChicagoMoscow to ChicagoDubai to ChicagoNew Delhi to ChicagoBangkok to ChicagoSingapore to Chicago

Questions and answers

What is the time difference between Koesan and Chicago?

Chicago is 14 hours behind Koesan.

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

When it is 9:00 AM in Koesan, it is 7:00 PM (Sun, Oct 18) in Chicago.

When is the best time to call Chicago from Koesan?

Working hours don't overlap fully. The closest fit is 7:00 AM – 8:00 AM in Koesan (5:00 PM – 6:00 PM in Chicago): working hours on one side, early or late on the other.

Does the time difference between Koesan and Chicago change?

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