Choose a Time
Enter the time you want to convert from JST.
JST to KST Converter
Convert Japan Standard Time (JST) to Korea Standard Time (KST) and compare the time difference between the two time zones.
Local: Wed, Sep 9, 2026 00:00 PM
JST
Japan Standard Time
12:54:32 pm
Sun, Sep 20, 2026
Reference Time Zone
UTC+9
KST
Korea Standard Time
12:54:32 pm
Sun, Sep 20, 2026
Same time
UTC+9
JST to KST Time Difference
JST and KST have the same UTC offset on this date.
JST to KST Conversion Table
Use this table as a quick reference when converting common times from JST to KST.
| JST | KST |
|---|---|
| 12:00 AM | 12:00 AM |
| 3:00 AM | 3:00 AM |
| 6:00 AM | 6:00 AM |
| 9:00 AM | 9:00 AM |
| 12:00 PM | 12:00 PM |
| 3:00 PM | 3:00 PM |
| 6:00 PM | 6:00 PM |
| 9:00 PM | 9:00 PM |
About Japan Standard Time (JST)
Japan Standard Time (JST) is nine hours ahead of Coordinated Universal Time, UTC+9.
- Abbreviation
- JST
- UTC Offset
- UTC+9
- Region
- Japan
About Korea Standard Time (KST)
Korea Standard Time (KST) is nine hours ahead of Coordinated Universal Time, UTC+9.
- Abbreviation
- KST
- UTC Offset
- UTC+9
- Region
- South Korea
How to Convert JST to KST
Compare the Zones
The converter calculates the corresponding time in KST.
Check the Date
Remember that a conversion can move the result to the previous or next calendar day.