Chicago to South Korea time conversion
South Korea is 14 hours ahead of Chicago. After the next clock change (): South Korea is 15 hours ahead of Chicago.
Time difference with your location
Chicago is 5 hours behind UTC. Compare with your local time →
Choose a date and time
Choose the local time in Chicago to convert it to South Korea on that date.
Skipped clock-change times are unavailable; a repeated time uses its first occurrence.
24-hour conversion chart · Chicago → South Korea
This table converts each hour in Chicago to South Korea on 2026-10-21.
- Working hours
- Outside working hours
- Night hours
| Chicago | South Korea | Shared working hours |
|---|---|---|
| 00:0012:00 AM | 14:002:00 PM | |
| 01:001:00 AM | 15:003:00 PM | |
| 02:002:00 AM | 16:004:00 PM | |
| 03:003:00 AM | 17:005:00 PM | |
| 04:004:00 AM | 18:006:00 PM | |
| 05:005:00 AM | 19:007:00 PM | |
| 06:006:00 AM | 20:008:00 PM | |
| 07:007:00 AM | 21:009:00 PM | |
| 08:008:00 AM | 22:0010:00 PM | |
| 09:009:00 AM | 23:0011:00 PM | |
| 10:0010:00 AM | 00:0012:00 AM +1 day | |
| 11:0011:00 AM | 01:001:00 AM +1 day | |
| 12:0012:00 PM | 02:002:00 AM +1 day | |
| 13:001:00 PM | 03:003:00 AM +1 day | |
| 14:002:00 PM | 04:004:00 AM +1 day | |
| 15:003:00 PM | 05:005:00 AM +1 day | |
| 16:004:00 PM | 06:006:00 AM +1 day | |
| 17:005:00 PM | 07:007:00 AM +1 day | |
| 18:006:00 PM | 08:008:00 AM +1 day | |
| 19:007:00 PM | 09:009:00 AM +1 day | |
| 20:008:00 PM | 10:0010:00 AM +1 day | |
| 21:009:00 PM | 11:0011:00 AM +1 day | |
| 22:0010:00 PM | 12:0012:00 PM +1 day | |
| 23:0011:00 PM | 13:001:00 PM +1 day |
Quick conversion examples
These examples convert local times in Chicago to South Korea on 2026-10-21.
Conversion formula: South Korea = Chicago + 14h · Chicago + 15h.
| Chicago | South Korea |
|---|---|
| 6:00 AM Chicago | = 8:00 PM South Korea |
| 7:00 AM Chicago | = 9:00 PM South Korea |
| 8:00 AM Chicago | = 10:00 PM South Korea |
| 9:00 AM Chicago | = 11:00 PM South Korea |
| 10:00 AM Chicago | = 12:00 AM South Korea (+1 day) |
| 12:00 PM Chicago | = 2:00 AM South Korea (+1 day) |
| 3:00 PM Chicago | = 5:00 AM South Korea (+1 day) |
| 5:00 PM Chicago | = 7:00 AM South Korea (+1 day) |
| 6:00 PM Chicago | = 8:00 AM South Korea (+1 day) |
| 8:00 PM Chicago | = 10:00 AM South Korea (+1 day) |
Overlapping meeting hours
The 08:00–18:00 working days in Chicago and South Korea do not overlap on 2026-10-21.
Clock changes on both sides, 2026–2028
Chicago and South Korea have the following local clock changes in 2026–2028; all times in the table are local to that side.
| Year | Chicago | South Korea |
|---|---|---|
| 2026 | · 02:00 → 03:00 · 02:00 → 01:00 | No clock changes; UTC+9 all year. |
| 2027 | · 02:00 → 03:00 · 02:00 → 01:00 | No clock changes; UTC+9 all year. |
| 2028 | · 02:00 → 03:00 · 02:00 → 01:00 | No clock changes; UTC+9 all year. |
At the start of 2026, South Korea is 15 hours ahead of Chicago. The difference changes during the following periods.
- From 2026-03-08 03:00 Chicago until 2026-11-01 01:00 Chicago, South Korea is 14 hours ahead of Chicago.
- From 2027-03-14 03:00 Chicago until 2027-11-07 01:00 Chicago, South Korea is 14 hours ahead of Chicago.
- From 2028-03-12 03:00 Chicago until 2028-11-05 01:00 Chicago, South Korea is 14 hours ahead of Chicago.
Frequently asked questions
What time is 9 AM Chicago in South Korea?
9:00 AM Chicago = 11:00 PM South Korea, using UTC-5 and UTC+9. Choose a date above for the seasonal local time.
Does the time difference between Chicago and South Korea change during the year?
Yes. During 2026–2028: South Korea is 14 hours ahead of Chicago; South Korea is 15 hours ahead of Chicago. The clock-change table gives the dates for both sides.
How do I tell whether it is day or night in South Korea?
Read the South Korea clock above: this guide counts 06:00–18:00 local time as daytime and the rest as nighttime, without using sunrise and sunset.
What is the best time to call between Chicago and South Korea?
The 08:00–18:00 working days in Chicago and South Korea do not overlap.
What is the time difference between Chicago and South Korea now?
Right now, South Korea is 14 hours ahead of Chicago. Conversion formula: South Korea = Chicago + 14h · Chicago + 15h.