Time zone meeting planner
Chicago and Seoul: plan a meeting across time zones
Chicago and Seoul are 14 hours apart (Seoul ahead). See the best meeting time, upcoming holidays and clock-change dates for both.
The time difference
For most of the year, Seoul is 14 hours ahead of Chicago. That gap does not hold all year — here is how it actually moves:
- 1 January to 7 March: Seoul is 15 hours ahead of Chicago
- 8 March to 31 October: Seoul is 14 hours ahead of Chicago
- 1 November to 31 December: Seoul is 15 hours ahead of Chicago
Best time to meet
Chicago and Seoul do not share a normal working-hours window. The best compromise is 5:30 PM in Chicago / 7:30 AM in Seoul — still early or late for whoever is furthest from a normal day, which is the honest trade-off at this distance.
Check another date for Chicago and SeoulClock changes to plan around
- Chicago changes clocks — 2026: 8 March and 1 November; 2027: 14 March and 7 November.
- Seoul does not change clocks.
Upcoming public holidays
- 12 October — Chicago: Columbus Day
- 11 November — Chicago: Veterans Day
- 26 November — Chicago: Thanksgiving Day
- 25 December — Chicago: Christmas Day
- 3 October — Seoul: National Foundation Day
- 5 October — Seoul: Alternative holiday for National Foundation Day
- 9 October — Seoul: Hangul Day
- 25 December — Seoul: Christmas Day
Holiday data uses country-level public calendars and may miss regional observances or company shutdowns — confirm with your participant if the date matters.
Questions about Chicago and Seoul
When is the best time to meet between Chicago and Seoul?
There is no hour that is inside normal working time in both cities, so someone has to stretch. The least painful slot is 5:30 PM in Chicago / 7:30 AM in Seoul. At this distance the fair answer is usually to alternate which side takes the awkward hour rather than fixing one time forever.
What time is it in Seoul when it is 9 AM in Chicago?
For most of the year, 9 AM in Chicago is 11 PM in Seoul (UTC-5 against UTC+9). During the weeks listed above when the gap shifts, it moves by an hour. Open the planner for a specific date.
Does Chicago or Seoul change clocks first?
Seoul does not observe daylight saving time; Chicago does, so the gap shifts when Chicago changes clocks.
Is there a public holiday in Chicago or Seoul soon?
Chicago: Columbus Day on 12 October. Seoul: National Foundation Day on 3 October.