KST to JST time converter

KST and JST are on the same time. When it is 9:00 AM in KST, it is 9:00 AM in JST.

KST UTC+9

Saturday, October 17, 2026

JST UTC+9

Saturday, October 17, 2026

KST
Korea Standard Time
Sat, Oct 17
UTC+9
JST
Japan Standard Time
Sat, Oct 17
UTC+9±0
Finding your time zone…
Shared working hours (9:00–18:00)

KST to JST conversion table

Every hour of today in KST and the matching time in JST. Light rows are typical working hours (9:00–18:00).

KSTJST
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

Best time to call or meet

Both sides are at work from 9:00 AM – 6:00 PM in KST (9:00 AM – 6:00 PM in JST).

Daylight saving time and the difference

The difference stays 0 hours all year.

More conversions

JST to KSTKST to UTCKST to GMTKST to ESTKST to CSTKST to MSTKST to PSTKST to CETKST to MSKKST to GSTKST to PKTKST to ISTKST to SGT
UTC to JSTGMT to JSTEST to JSTCST to JSTMST to JSTPST to JSTCET to JSTMSK to JSTGST to JSTPKT to JSTIST to JSTSGT to JST

Questions and answers

What is the time difference between KST and JST?

KST and JST are on the same time.

What time is it in JST when it is 9 AM in KST?

When it is 9:00 AM in KST, it is 9:00 AM in JST.

When is the best time to call JST from KST?

Both sides are at work from 9:00 AM – 6:00 PM in KST (9:00 AM – 6:00 PM in JST).

Does the time difference between KST and JST change?

No. The difference stays 0 hours all year.