Chicago to Ansan Time Difference
Ansan is 14 hours ahead of Chicago. When it is noon in Chicago, it is 02:00 in Ansan.
Chicago (UTC-5) → Seoul (UTC+9)
🕐 Interactive Time Explorer
When it's 10:00 in Chicago, it's 00:00 in Ansan
Drag the slider to see corresponding times in both cities
🤝 Best Meeting Times
Chicago & Ansan◐ Extended Hours (3 hours)
✈️ Travel Information
Distance
10,540 km
Est. Flight Time
~13.4h
Time Difference
+14h
Work Hours Overlap
0h
None
🔴 Office Closed
No overlap available
No overlap
⏰ Quick Conversion
06:00
Chicago
20:00
Ansan
09:00
Chicago
23:00
Ansan
12:00
Chicago
02:00
Ansan (+1)
15:00
Chicago
05:00
Ansan (+1)
18:00
Chicago
08:00
Ansan (+1)
21:00
Chicago
11:00
Ansan (+1)
00:00
Chicago
14:00
Ansan
03:00
Chicago
17:00
Ansan
Frequently Asked Questions
How many hours is Chicago behind Ansan?
Ansan is 14 hours ahead of Chicago. When it is 12:00 noon in Chicago, it is 02:00 in Ansan. Chicago operates on America/Chicago (UTC-5), while Ansan uses Asia/Seoul (UTC+9).
What is the best time to call Ansan from Chicago?
Standard business hours (9 AM–5 PM) do not overlap between Chicago and Ansan due to the 14 hours difference. Consider early morning or late evening calls, or use async communication.
Does the Chicago to Ansan time difference change throughout the year?
The time difference can shift by up to one hour when either city observes Daylight Saving Time (DST). DST transition dates differ between countries — typically March/April in the Northern Hemisphere and October in the Southern Hemisphere. Always verify the live difference above when scheduling important meetings near DST changeover dates.
Flying between Chicago and Ansan
The distance between Chicago and Ansan is approximately 10,540 km. A direct flight typically takes around 13.4 hours. Your arrival clock will show local Ansan time — use our Flight Time Calculator to predict exact arrival times.