Meeting planner for 2026
Best meeting time for Chicago and Seoul
Seoul is 14 hours ahead of Chicago for most of 2026. Their 09:00 to 17:00 working hours do not overlap, so the least painful 1 hour meeting is 19:00 to 20:00 in Chicago, which is 09:00 to 10:00 the next day in Seoul.
Working hours overlap in 2026
Both cities working 09:00 to 17:00 local time. When the time difference changes during the year, so do the shared hours.
| Time difference | When in 2026 | In Chicago | In Seoul | Shared hours |
|---|---|---|---|---|
| Seoul 14 hours ahead | Most of the year | 19:00 to 20:00, late | 09:00 to 10:00 (next day), fine | None |
| Seoul 15 hours ahead | 1 January to 7 March and 1 November to 31 December | 16:00 to 17:00, fine | 07:00 to 08:00 (next day), early | None |
Worked out for 8 July and 4 February 2026. When working hours do not overlap, the row shows the least painful 1 hour meeting and how it rates for each city: an hour just before or after work counts for less than an hour when someone is asleep.
Time difference between Chicago and Seoul in 2026
Seoul is 14 hours ahead of Chicago for most of 2026. From 1 January to 7 March and from 1 November to 31 December 2026, Seoul is 15 hours ahead of Chicago.
| Dates in 2026 | Chicago | Seoul | Difference |
|---|---|---|---|
| 1 January to 7 March | UTC-06:00, standard | UTC+09:00 | Seoul 15 hours ahead |
| 8 March to 31 October | UTC-05:00, daylight saving | UTC+09:00 | Seoul 14 hours ahead |
| 1 November to 31 December | UTC-06:00, standard | UTC+09:00 | Seoul 15 hours ahead |
Clock changes in 2026
- Chicago is on UTC-06:00 in standard time and UTC-05:00 in daylight saving time. Clocks go forward 1 hour at 02:00 on Sunday 8 March 2026 and back 1 hour at 02:00 on Sunday 1 November 2026.
- Seoul stays on UTC+09:00 all year and does not change clocks.
Chicago to Seoul time conversion
Hour by hour on Wednesday 8 July 2026, when Seoul is 14 hours ahead of Chicago. At other times of the year, adjust by the change in the time difference above. Working hours are 09:00 to 17:00 in both cities.
| Chicago | Seoul | Working |
|---|---|---|
| 00:00 | 14:00 | Seoul only |
| 01:00 | 15:00 | Seoul only |
| 02:00 | 16:00 | Seoul only |
| 03:00 | 17:00 | Neither |
| 04:00 | 18:00 | Neither |
| 05:00 | 19:00 | Neither |
| 06:00 | 20:00 | Neither |
| 07:00 | 21:00 | Neither |
| 08:00 | 22:00 | Neither |
| 09:00 | 23:00 | Chicago only |
| 10:00 | 00:00 (next day) | Chicago only |
| 11:00 | 01:00 (next day) | Chicago only |
| 12:00 | 02:00 (next day) | Chicago only |
| 13:00 | 03:00 (next day) | Chicago only |
| 14:00 | 04:00 (next day) | Chicago only |
| 15:00 | 05:00 (next day) | Chicago only |
| 16:00 | 06:00 (next day) | Chicago only |
| 17:00 | 07:00 (next day) | Neither |
| 18:00 | 08:00 (next day) | Neither |
| 19:00 | 09:00 (next day) | Seoul only |
| 20:00 | 10:00 (next day) | Seoul only |
| 21:00 | 11:00 (next day) | Seoul only |
| 22:00 | 12:00 (next day) | Seoul only |
| 23:00 | 13:00 (next day) | Seoul only |
Questions about Chicago and Seoul time
What is the time difference between Chicago and Seoul?
Seoul is 14 hours ahead of Chicago for most of 2026. From 1 January to 7 March and from 1 November to 31 December 2026, Seoul is 15 hours ahead of Chicago.
What is the best time for a meeting between Chicago and Seoul?
For most of 2026, working hours do not overlap, and the least painful 1 hour meeting is 19:00 to 20:00 in Chicago (late for Chicago), which is 09:00 to 10:00 the next day in Seoul (fine for Seoul). From 1 January to 7 March and from 1 November to 31 December 2026, working hours do not overlap, and the least painful 1 hour meeting is 16:00 to 17:00 in Chicago (fine for Chicago), which is 07:00 to 08:00 the next day in Seoul (early for Seoul). These times assume 09:00 to 17:00 working hours in both cities.
Do Chicago and Seoul change clocks on the same day?
No. Seoul stays on UTC+09:00 all year, while Chicago changes clocks on Sunday 8 March and Sunday 1 November 2026, so the time difference changes when Chicago does.
When it is 09:00 in Chicago, what time is it in Seoul?
It is 23:00 in Seoul for most of 2026 and 00:00 the next day from 1 January to 7 March and from 1 November to 31 December.