KST to JST converter

Korea Time (Seoul) to Japan Time (Tokyo, Osaka).

KST9:07 AMSat 31 Oct 2026

→

JST9:07 AMSat 31 Oct 2026

JST is the same time as KST.

Pick a time in KST

⇄ JST to KST

9:00 AM KST = 9:00 AM JST same day

Best time to meet

The best time to meet is between 9:00 AM and 5:00 PM KST, which is 9:00 AM to 5:00 PM JST. Both sides are then inside 9 AM to 5 PM.

KST to JST time table

For 31 Oct 2026. Green rows: both sides between 9 AM and 5 PM.

KST	JST
12:00 AM KST	12:00 AM JST
1:00 AM KST	1:00 AM JST
2:00 AM KST	2:00 AM JST
3:00 AM KST	3:00 AM JST
4:00 AM KST	4:00 AM JST
5:00 AM KST	5:00 AM JST
6:00 AM KST	6:00 AM JST
7:00 AM KST	7:00 AM JST
8:00 AM KST	8:00 AM JST
9:00 AM KST	9:00 AM JST
10:00 AM KST	10:00 AM JST
11:00 AM KST	11:00 AM JST
12:00 PM KST	12:00 PM JST
1:00 PM KST	1:00 PM JST
2:00 PM KST	2:00 PM JST
3:00 PM KST	3:00 PM JST
4:00 PM KST	4:00 PM JST
5:00 PM KST	5:00 PM JST
6:00 PM KST	6:00 PM JST
7:00 PM KST	7:00 PM JST
8:00 PM KST	8:00 PM JST
9:00 PM KST	9:00 PM JST
10:00 PM KST	10:00 PM JST
11:00 PM KST	11:00 PM JST

Quick answers

9:00 AM KST = 9:00 AM JST
12:00 PM KST = 12:00 PM JST
3:00 PM KST = 3:00 PM JST
5:00 PM KST = 5:00 PM JST
9:00 AM JST = 9:00 AM KST
12:00 PM JST = 12:00 PM KST
5:00 PM JST = 5:00 PM KST

Does the gap change during the year?

No. JST is the same time as KST all year.

KST does not change its clocks. JST does not change its clocks.

About KST and JST

KST here means Korea Time, the clock in Seoul. Right now it is UTC+9. It has no daylight saving.

JST here means Japan Time, the clock in Tokyo, Osaka. Right now it is UTC+9. It has no daylight saving.

Every city on your wrist

Meanwhile puts these times in your Mac menu bar, on your iPhone home screen and on your Apple Watch. Type “3pm Tokyo” and every city answers. Free for 3 cities. Unlock every city on every device once for $4.99, shared with your family. No subscription.

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