Seoul ↔ Chicago Time Zone Converter

Seoul leads by 14 hours

ClockinSync

BASE

09:00

Work Clients Team +

00:0006:0012:0018:0024:00

Chicago

USA · -14h

19:00-1 day

London

United Kingdom · -8h

01:00

New York

USA · -13h

20:00-1 day

Tokyo

Japan · UTC±0

09:00

Dubai

United Arab Emirates · -5h

04:00

How far apart are Seoul and Chicago?

Seoul is 14 hours ahead of Chicago. When Seoul clocks hit noon, Chicago reads 22:00.

Seoul runs on Asia/Seoul; Chicago runs on America/Chicago. Together they are 14 hours apart.

Daily overlap window

There is no business hours overlap between Seoul and Chicago during standard working hours (9:00–17:00). Meetings would require one party to work outside normal hours.

Best times to schedule a meeting

Seoul and Chicago have no shared working window. These slots minimize out-of-hours disruption for both sides.

06:00 Seoul / 16:00 Chicago⚡ One side off-hours

⚠️ 3h before working hours in Seoul

09:00 Seoul / 19:00 Chicago⚡ One side off-hours

⚠️ 3h after working hours in Chicago

05:00 Seoul / 15:00 Chicago⚡ One side off-hours

⚠️ 4h before working hours in Seoul

Working hours defined as 09:00–17:00 local time for each location.

Holiday calendar for both locations

⚡ Both locations have upcoming holidays, check availability before scheduling.

Seoul7 holidays

Aug 15Liberation Day

Sep 24Chuseok

Sep 25Chuseok

Sep 26Chuseok

Oct 3National Foundation Day

Chicago7 holidays

Jul 3Independence DaySOON

Sep 7Labour Day

Oct 12Columbus Day

Oct 12Indigenous Peoples' Day

Nov 11Veterans Day

Working across Seoul and Chicago

Coordinating between Seoul (South Korea) and Chicago (USA) means working around a 14-hour time difference. Since standard business hours don't naturally overlap, meetings usually require one side to shift slightly outside their normal working day.

💡 Best practice for cross-timezone meetings

⚡

A 06:00 meeting in Seoul means 16:00 in Chicago (3h before working hours in Seoul).

⚡

A 09:00 meeting in Seoul means 19:00 in Chicago (3h after working hours in Chicago).

⚡

A 05:00 meeting in Seoul means 15:00 in Chicago (4h before working hours in Seoul).

Since there is no natural overlap, the options above represent the most balanced compromise, minimizing out-of-hours inconvenience for both sides.

Avoid scheduling mistakes — especially around daylight saving changes. Use the ClockinSync Chrome Extension to instantly verify and compare both time zones directly in your browser, without manual calculations.

Add to your browser — Free →

Need a specific time? Use the slider or type directly into the input bar — it understands "3pm", "15:30", and location-specific formats like "9am Seoul".

Quick time conversions: Seoul → Chicago

Common reference points to help you plan across the time difference.

When it's 1:00 PM in Seoul, the time in Chicago is 11:00 PM.(-1 day)

What time is 6:00 PM Seoul in Chicago?—4:00 AM

3:00 PMin Seoul→1:00 AMin Chicago

A 8:00 AM start in Seoul means 6:00 PM for your contact in Chicago.(-1 day)

10:00 AMin Seoul→8:00 PMin Chicago(-1 day)

If it's 11:00 AM where I am in Seoul, what does Chicago show?—9:00 PM(-1 day)

4:00 PMin Seoul→2:00 AMin Chicago

Seoul ↔ Chicago

No overlap — one side will join outside working hours

Seoul

Chicago