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Time difference between Chicago and Seoul

Seoul is 15 hours ahead of Chicago.

Chicago
United States · Central Standard Time
6:30 PM
Wednesday, November 11, 2026
Seoul
South Korea · Korean Standard Time
9:30 AM
Thursday, November 12, 2026
Compare more placesSeoul to Chicago

Chicago to Seoul time converter

Green rows are office hours in both places; light green rows are when both are awake.

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

Questions

What is the time difference between Chicago and Seoul?

Seoul is 15 hours ahead of Chicago. Chicago is on UTC−6 and Seoul is on UTC+9.

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

When it is 9:00 AM in Chicago, it is 12:00 AM the next day in Seoul.

When is the best time to call Seoul from Chicago?

There are no shared office hours. The most comfortable time to call is 5:00 PM–10:00 PM in Chicago (8:00 AM–1:00 PM in Seoul), when both places are awake.

Which days are working days in both Chicago and Seoul?

Both Chicago and Seoul usually work Monday to Friday.

Does the time difference between Chicago and Seoul change?

Yes. Because of daylight saving time, the difference changes on Sunday, March 14, 2027, when Seoul will be 14 hours ahead of Chicago.

Chicago is 15 hours behind Seoul. More: time in Chicago · time in Seoul

Time difference from Chicago to other cities

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Time difference from Seoul