Seoul to Chicago time
Chicago is 15 hours behind Seoul.
Time difference between Seoul and Chicago
Chicago is 15 hours behind Seoul. Seoul is on Korean Standard Time (UTC+09:00) and Chicago is on Central Standard Time (CST (UTC−06:00)).
The gap is not constant. Because of daylight saving it varies from 14 hours to 15 hours over the year.
Convert Seoul time to Chicago time
These examples use the current offsets, UTC+09:00 for Seoul and UTC−06:00 for Chicago. Use the converter above for any other time or date.
Chicago is behind, so from midnight to 3:00 PM in Seoul it is still the previous calendar day in Chicago.
| Seoul time | Chicago time |
|---|---|
| 6:00 AM | 4:00 PM (previous day) |
| 9:00 AM | 7:00 PM (previous day) |
| 12:00 PM | 10:00 PM (previous day) |
| 3:00 PM | 1:00 AM |
| 6:00 PM | 3:00 AM |
| 9:00 PM | 6:00 AM |
Best time to call or meet: Seoul and Chicago working hours
The standard 9:00 AM to 5:00 PM working days in Seoul and Chicago do not overlap.
Between 8:00 AM and 8:00 PM, both cities are awake from 8:00 AM to 11:00 AM in Seoul (5:00 PM to 8:00 PM in Chicago), which usually means an early start or a late finish for one side.
Weekends, public holidays and local working weeks differ by country, so check those before booking.
Daylight saving time in Seoul and Chicago
Seoul does not change its clocks for daylight saving, so its UTC offset stays the same all year.
Chicago observes daylight saving time. Its next change is on Mar 14, 2027 at 2:00 AM, when clocks go forward 1 hour (UTC−06:00 to UTC−05:00).