What is the time difference between JST and KST?

JST (Japan Standard Time) is +0 hours behind/ahead of KST (Korea Standard Time). The exact difference depends on Daylight Saving Time status in both timezones.

How do I convert JST to KST?

Use our free converter above. Select Japan Standard Time as the source timezone and Korea Standard Time as the destination, enter the time you want to convert, and click Convert. Our tool automatically handles DST.

What is the best time to schedule a meeting between Japan Standard Time and Korea Standard Time?

The best meeting time typically falls during overlapping business hours (9 AM - 5 PM). Use our meeting planner table below to find overlapping hours between JST and KST.

Does JST or KST observe Daylight Saving Time?

Our converter automatically detects DST status for both timezones. The result will show DST indicators when Daylight Saving Time is active.

JST to KST Converter

Convert Japan Standard Time (JST) to Korea Standard Time (KST) instantly. Convert any timezone or plan a meeting.

From (JST)

To (KST)

Time to Convert

Leave date empty to use current date

Time Difference

+0 hours

JST is +0 hours behind/ahead of KST.

JST → KST Conversion Table

JST (Japan Standard Time)	KST (Korea Standard Time)
Jul 15 09:00	09:00
12:00	12:00
15:00	15:00
18:00	18:00
21:00	21:00
00:00	00:00
03:00	03:00
06:00	06:00

Best Meeting Times

Hours where both timezones are within business hours (9 AM - 5 PM) are highlighted in green.

JST (Japan Standard Time)

09:00

10:00

11:00

12:00

13:00

14:00

15:00

16:00

17:00

18:00

19:00

20:00

21:00

22:00

23:00

00:00

01:00

02:00

03:00

04:00

05:00

06:00

07:00

08:00

KST (Korea Standard Time)