Hong Kong and Seoul time difference

Seoul is 1 hour ahead of Hong Kong.

Plan a meeting in Hong Kong and SeoulOpens 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: 09:00–16:00 in Hong Kong, which is 10:00–17:00 in Seoul.

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).

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

Through the year

Dates	Difference
October 8, 2026–October 7, 2027	Seoul is 1 hour ahead of Hong Kong

Clock changes

Hong Kong does not change its clocks.

Seoul does not change its clocks.

Questions

What time is it in Seoul when it is 09:00 in Hong Kong?

On a usual day it is 10:00 in Seoul.

Do Hong Kong and Seoul change their clocks on the same day?

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