Time difference between Seoul and Chicago: 14 hours
Seoul is 14 hours ahead of Chicago
Best time for a call or meeting
Seoul 07:00–12:00 = Chicago 17:00–22:00 Seoul 21:00–22:00 = Chicago 07:00–08:00
Business hours never overlap, so these are the hours when both cities are awake (7:00–22:00).
Convert a specific time
Hour-by-hour conversion
| Seoul | Chicago |
|---|---|
| 00:00 | 10:00 |
| 01:00 | 11:00 |
| 02:00 | 12:00 |
| 03:00 | 13:00 |
| 04:00 | 14:00 |
| 05:00 | 15:00 |
| 06:00 | 16:00 |
| 07:00 | 17:00 |
| 08:00 | 18:00 |
| 09:00 | 19:00 |
| 10:00 | 20:00 |
| 11:00 | 21:00 |
| 12:00 | 22:00 |
| 13:00 | 23:00 |
| 14:00 | 00:00 |
| 15:00 | 01:00 |
| 16:00 | 02:00 |
| 17:00 | 03:00 |
| 18:00 | 04:00 |
| 19:00 | 05:00 |
| 20:00 | 06:00 |
| 21:00 | 07:00 |
| 22:00 | 08:00 |
| 23:00 | 09:00 |
Daylight saving time can change the difference by season. Shown values reflect the current offset.
Frequently asked questions
How many hours is the time difference between Seoul and Chicago?
Seoul is 14 hours ahead of Chicago. When it is 12:00 noon in Seoul, it is 22:00 (previous day) in Chicago.
Does daylight saving time affect the difference?
Yes. One or both places observe daylight saving time, so the difference changes with the season. This page shows the current difference.
What is the best time for a call or meeting?
Seoul 07:00–12:00 = Chicago 17:00–22:00 / Seoul 21:00–22:00 = Chicago 07:00–08:00. Business hours never overlap, so these are the hours when both cities are awake (7:00–22:00).