JST to KST converter

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

JST9:07 AMSat 31 Oct 2026

→

KST9:07 AMSat 31 Oct 2026

KST is the same time as JST.

Pick a time in JST

⇄ KST to JST

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

Best time to meet

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

JST to KST time table

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

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

Quick answers

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

Does the gap change during the year?

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

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

About JST and KST

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

KST here means Korea Time, the clock in Seoul. 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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