JST to KST Converter

KST is the same time as JST. When it's 12:00 PM JST, it's 12:00 PM KST.

From

JST · UTC+9

1:09:54PM

Japan Standard Time

e.g. Tokyo

To

KST · UTC+9

1:09:54PM

Korea Standard Time

e.g. Seoul

Open in World ClockKST → 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

Hourly conversion (JST → KST)

JSTKST
12:00 AM12:00 AM
1:00 AM1:00 AM
2:00 AM2:00 AM
3:00 AM3:00 AM
4:00 AM4:00 AM
5:00 AM5:00 AM
6:00 AM6:00 AM
7:00 AM7:00 AM
8:00 AM8:00 AM
9:00 AM9:00 AM
10:00 AM10:00 AM
11:00 AM11:00 AM
12:00 PM12:00 PM
1:00 PM1:00 PM
2:00 PM2:00 PM
3:00 PM3:00 PM
4:00 PM4:00 PM
5:00 PM5:00 PM
6:00 PM6:00 PM
7:00 PM7:00 PM
8:00 PM8:00 PM
9:00 PM9:00 PM
10:00 PM10:00 PM
11:00 PM11:00 PM

Shaded rows are within standard working hours (8am–6pm) on both sides.

Japan does not observe daylight saving time, so JST (UTC+9) applies year-round.

More JST conversions

Frequently asked questions

What is the time difference between JST and KST?
KST is the same time as JST. JST is UTC+9 and KST is UTC+9.
What is 12:00 PM JST in KST?
12:00 PM JST is 12:00 PM KST.
Does JST change for daylight saving time?
Japan does not observe daylight saving time, so JST (UTC+9) applies year-round.