Chicago is 14 hours behind South Korea. When Chicago clocks hit noon, South Korea reads 02:00.
Chicago observes America/Chicago and South Korea observes Asia/Seoul — a 14 hours gap between them.
Mutual working hours
When Chicago is in standard working hours, South Korea is not — and vice versa. There is no mutual business window between these two locations.
Optimal meeting slots
No business hours overlap exists between Chicago and South Korea. Showing the most balanced options with minimal inconvenience for both locations.
16:00 Chicago / 06:00 Seoul⚡ One side off-hours
⚠️ 3h before working hours in Seoul
19:00 Chicago / 09:00 Seoul⚡ One side off-hours
⚠️ 3h after working hours in Chicago
15:00 Chicago / 05:00 Seoul⚡ One side off-hours
⚠️ 4h before working hours in Seoul
Assumes a standard 9 AM–5 PM workday in each location's local timezone.
Holiday calendar for both locations
⚡ Both locations have upcoming holidays, check availability before scheduling.
Chicago6 holidays
Sep 7Labour DaySOON
Oct 12Columbus Day
Oct 12Indigenous Peoples' Day
Nov 11Veterans Day
Nov 26Thanksgiving Day
South Korea6 holidays
Sep 24Chuseok
Sep 25Chuseok
Sep 26Chuseok
Oct 3National Foundation Day
Oct 9Hangul Day
Working across Chicago and South Korea
Chicago (USA) and South Korea (South Korea) are 14 hours apart — far enough that standard 9–5 schedules do not overlap. Any real-time meeting means someone is joining outside their normal hours.
💡 Best practice for cross-timezone meetings
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16:00–17:00 in Chicago corresponds to 06:00–07:00 in South Korea (3h before working hours in Seoul).
⚡
19:00–20:00 in Chicago corresponds to 09:00–10:00 in South Korea (3h after working hours in Chicago).
⚡
15:00–16:00 in Chicago corresponds to 05:00–06:00 in South Korea (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.
Recurring meetings are particularly vulnerable to DST shifts. The ClockinSync Chrome Extension alerts you before the offset changes.
Drag the slider at the top to convert any Chicago time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.
