Seoul and Shanghai time difference

Shanghai is 1 hour behind Seoul.

Plan a meeting in Seoul and ShanghaiOpens the free planner with both cities: drag the bands to any day and time, add more cities, and share the result.

Work hours overlap for 7 hours: 10:00–17:00 in Seoul, which is 09:00–16:00 in Shanghai.

Hour by hour

On a usual work day (October 14, 2026). Green is 09:00–17:00 work time, dark is night (21:00–07:00).

Seoul	Shanghai
00:00, Night	23:00previous day, Night
01:00, Night	00:00, Night
02:00, Night	01:00, Night
03:00, Night	02:00, Night
04:00, Night	03:00, Night
05:00, Night	04:00, Night
06:00, Night	05:00, Night
07:00, Off hours	06:00, Night
08:00, Off hours	07:00, Off hours
09:00, Work hours	08:00, Off hours
10:00, Work hours	09:00, Work hours
11:00, Work hours	10:00, Work hours
12:00, Work hours	11:00, Work hours
13:00, Work hours	12:00, Work hours
14:00, Work hours	13:00, Work hours
15:00, Work hours	14:00, Work hours
16:00, Work hours	15:00, Work hours
17:00, Off hours	16:00, Work hours
18:00, Off hours	17:00, Off hours
19:00, Off hours	18:00, Off hours
20:00, Off hours	19:00, Off hours
21:00, Night	20:00, Off hours
22:00, Night	21:00, Night
23:00, Night	22:00, Night

Through the year

Dates	Difference
October 8, 2026–October 7, 2027	Shanghai is 1 hour behind Seoul

Clock changes

Seoul does not change its clocks.

Shanghai does not change its clocks.

Questions

What time is it in Shanghai when it is 09:00 in Seoul?

On a usual day it is 08:00 in Shanghai.

Do Seoul and Shanghai change their clocks on the same day?

Neither changes its clocks, so the difference stays the same all year.