9:23 AM
Thursday, August 13, 2026
UTC+09:00Fixed offset
Time Zone Converter
KST to JSTTime Converter
Convert Korea Standard Time to Japan Standard Time, compare their live UTC offsets and explore a complete 24-hour conversion table.
Live clocksDST aware24-hour table
Live comparison
Current local times
From
KST
Korea Standard Time
To
JST
Japan Standard Time
Enter a local date and time using KST.
JST
9:23 AM
Thursday, August 13, 2026
UTC+09:00Fixed offset
Time difference
KST and JST have the same UTC offset
Hourly comparison
24 hours24-hour conversion table
Compare each hour in KST with JST.
| Hour | KST | JST | Difference |
|---|---|---|---|
| 0 | 9:23 AM Thursday, August 13, 2026 | 9:23 AM Thursday, August 13, 2026 | Same offset |
| 1 | 10:23 AM Thursday, August 13, 2026 | 10:23 AM Thursday, August 13, 2026 | Same offset |
| 2 | 11:23 AM Thursday, August 13, 2026 | 11:23 AM Thursday, August 13, 2026 | Same offset |
| 3 | 12:23 PM Thursday, August 13, 2026 | 12:23 PM Thursday, August 13, 2026 | Same offset |
| 4 | 1:23 PM Thursday, August 13, 2026 | 1:23 PM Thursday, August 13, 2026 | Same offset |
| 5 | 2:23 PM Thursday, August 13, 2026 | 2:23 PM Thursday, August 13, 2026 | Same offset |
| 6 | 3:23 PM Thursday, August 13, 2026 | 3:23 PM Thursday, August 13, 2026 | Same offset |
| 7 | 4:23 PM Thursday, August 13, 2026 | 4:23 PM Thursday, August 13, 2026 | Same offset |
| 8 | 5:23 PM Thursday, August 13, 2026 | 5:23 PM Thursday, August 13, 2026 | Same offset |
| 9 | 6:23 PM Thursday, August 13, 2026 | 6:23 PM Thursday, August 13, 2026 | Same offset |
| 10 | 7:23 PM Thursday, August 13, 2026 | 7:23 PM Thursday, August 13, 2026 | Same offset |
| 11 | 8:23 PM Thursday, August 13, 2026 | 8:23 PM Thursday, August 13, 2026 | Same offset |
| 12 | 9:23 PM Thursday, August 13, 2026 | 9:23 PM Thursday, August 13, 2026 | Same offset |
| 13 | 10:23 PM Thursday, August 13, 2026 | 10:23 PM Thursday, August 13, 2026 | Same offset |
| 14 | 11:23 PM Thursday, August 13, 2026 | 11:23 PM Thursday, August 13, 2026 | Same offset |
| 15 | 12:23 AM Friday, August 14, 2026 | 12:23 AM Friday, August 14, 2026 | Same offset |
| 16 | 1:23 AM Friday, August 14, 2026 | 1:23 AM Friday, August 14, 2026 | Same offset |
| 17 | 2:23 AM Friday, August 14, 2026 | 2:23 AM Friday, August 14, 2026 | Same offset |
| 18 | 3:23 AM Friday, August 14, 2026 | 3:23 AM Friday, August 14, 2026 | Same offset |
| 19 | 4:23 AM Friday, August 14, 2026 | 4:23 AM Friday, August 14, 2026 | Same offset |
| 20 | 5:23 AM Friday, August 14, 2026 | 5:23 AM Friday, August 14, 2026 | Same offset |
| 21 | 6:23 AM Friday, August 14, 2026 | 6:23 AM Friday, August 14, 2026 | Same offset |
| 22 | 7:23 AM Friday, August 14, 2026 | 7:23 AM Friday, August 14, 2026 | Same offset |
| 23 | 8:23 AM Friday, August 14, 2026 | 8:23 AM Friday, August 14, 2026 | Same offset |
About KST
The standard time used in South Korea.
- Full name
- Korea Standard Time
- Type
- Fixed UTC offset
- Regions
- South Korea
Target time zone
About JST
The standard time used throughout Japan.
- Full name
- Japan Standard Time
- Type
- Fixed UTC offset
- Regions
- Japan
Reverse this conversion
Convert JST back to KST.
FAQ
KST to JST time FAQ
Common questions about converting Korea Standard Time to Japan Standard Time, their UTC offsets and daylight-saving behavior.
What is the time difference between KST and JST?
KST and JST currently have the same UTC offset. A seasonal time zone may use a different offset on another date.
What time is 9:00 AM KST in JST?
When it is 9:00 AM in KST, it is 9:00 AM in JST on Thursday, August 13, 2026.
Is JST ahead of KST?
Neither zone is ahead on this date because both use the same UTC offset.
Do KST and JST use daylight saving time?
KST is defined as a fixed UTC offset. Its offset does not change automatically according to the selected date. JST is defined as a fixed UTC offset. Its offset does not change automatically according to the selected date.
Where are KST and JST used?
KST is associated with South Korea. JST is associated with Japan. Time-zone abbreviations can be ambiguous, so TimeInOne uses the specific definitions shown on this page.