Chicago, United States
Sat, Jul 4, 2026 09:37
- Timezone
- America/Chicago
- UTC offset
- UTC-05:00
- Daylight saving
- Yes
Chicago and Seoul Time Difference
Compare Chicago vs Seoul time, current local times, UTC offset difference, daylight saving status, and the best time to plan meetings or travel.
Quick Answer
What is the time difference between Chicago and Seoul?
The live comparison below shows both local times, current UTC offsets, daylight saving status, and whether Seoul is ahead of or behind Chicago.
Current time difference
Seoul, South Korea
Sat, Jul 4, 2026 23:37
- Timezone
- Asia/Seoul
- UTC offset
- UTC+09:00
- Daylight saving
- No
Time difference
Seoul is 14 hours ahead of Chicago
UTC offset difference
+14:00
Suggested call window
Sat, Jul 4, 19:00-23:00 / Sun, Jul 5, 09:00-13:00
Calculated using initiator awake hours of 08:00-23:00 and recipient office hours of 09:00-18:00.
Dynamic Time Difference
Chicago is 14 hours behind Seoul
The difference changes during 2026 because Chicago changes UTC offset during the year and Seoul keeps a fixed UTC offset. Jan 1-Mar 7: Chicago is 15 hours behind Seoul; Mar 8-Oct 31: Chicago is 14 hours behind Seoul; Nov 1-Dec 31: Chicago is 15 hours behind Seoul.
Chicago
UTC-05:00 · Seasonal clock changes; DST is active now
Seoul
UTC+09:00 · No seasonal offset change detected
Business Call Window
09:00-18:00 work-hour overlap
The standard workdays do not overlap. Consider 19:00 in Chicago / 09:00 in Seoul, or 18:00 in Chicago / 08:00 in Seoul. Confirm the edge-of-day option before calling.
24-Hour Conversion Table
Chicago to Seoul hourly time conversion
The table uses today's active UTC offsets. Seasonal rows can shift when daylight saving time changes.
| Chicago | Seoul |
|---|---|
| 00:00 | 14:00 |
| 01:00 | 15:00 |
| 02:00 | 16:00 |
| 03:00 | 17:00 |
| 04:00 | 18:00 |
| 05:00 | 19:00 |
| 06:00 | 20:00 |
| 07:00 | 21:00 |
| 08:00 | 22:00 |
| 09:00 | 23:00 |
| 10:00 | 00:00 (next day) |
| 11:00 | 01:00 (next day) |
| 12:00 | 02:00 (next day) |
| 13:00 | 03:00 (next day) |
| 14:00 | 04:00 (next day) |
| 15:00 | 05:00 (next day) |
| 16:00 | 06:00 (next day) |
| 17:00 | 07:00 (next day) |
| 18:00 | 08:00 (next day) |
| 19:00 | 09:00 (next day) |
| 20:00 | 10:00 (next day) |
| 21:00 | 11:00 (next day) |
| 22:00 | 12:00 (next day) |
| 23:00 | 13:00 (next day) |
FAQ
What is the current time difference between Chicago and Seoul?
Chicago is 14 hours behind Seoul. This uses the active IANA timezone offsets for today.
When does the Chicago-Seoul time difference change in 2026?
The difference changes during 2026 because Chicago changes UTC offset during the year and Seoul keeps a fixed UTC offset. Jan 1-Mar 7: Chicago is 15 hours behind Seoul; Mar 8-Oct 31: Chicago is 14 hours behind Seoul; Nov 1-Dec 31: Chicago is 15 hours behind Seoul.
What are the current UTC offsets for Chicago and Seoul?
Chicago is currently UTC-05:00; Seoul is currently UTC+09:00.
Which direction does the clock change when flying from Chicago to Seoul?
Travelers from Chicago to Seoul move their clock forward by 14 hours.
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