Seoul Time to JST Converter
JST and KST are on the same time. 9:00 AM KST = 9:00 AM JST.
JST and KST are on the same time. Converting Seoul Time to JST leaves the clock unchanged: 9:00 AM KST = 9:00 AM JST.
Seoul Time (Seoul time) is used in Seoul, South Korea. JST (Japan Time) is used in Japan.
Seoul Time to JST time conversion table
Seoul Time to JST on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| Seoul Time | JST | Day |
|---|---|---|
| 12:00 AM KST | 12:00 AM JST | night |
| 1:00 AM KST | 1:00 AM JST | night |
| 2:00 AM KST | 2:00 AM JST | night |
| 3:00 AM KST | 3:00 AM JST | night |
| 4:00 AM KST | 4:00 AM JST | night |
| 5:00 AM KST | 5:00 AM JST | night |
| 6:00 AM KST | 6:00 AM JST | — |
| 7:00 AM KST | 7:00 AM JST | — |
| 8:00 AM KST | 8:00 AM JST | — |
| 9:00 AM KST | 9:00 AM JST | work hours |
| 10:00 AM KST | 10:00 AM JST | work hours |
| 11:00 AM KST | 11:00 AM JST | work hours |
| 12:00 PM KST | 12:00 PM JST | work hours |
| 1:00 PM KST | 1:00 PM JST | work hours |
| 2:00 PM KST | 2:00 PM JST | work hours |
| 3:00 PM KST | 3:00 PM JST | work hours |
| 4:00 PM KST | 4:00 PM JST | work hours |
| 5:00 PM KST | 5:00 PM JST | — |
| 6:00 PM KST | 6:00 PM JST | — |
| 7:00 PM KST | 7:00 PM JST | — |
| 8:00 PM KST | 8:00 PM JST | — |
| 9:00 PM KST | 9:00 PM JST | — |
| 10:00 PM KST | 10:00 PM JST | night |
| 11:00 PM KST | 11:00 PM JST | night |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert Seoul Time to JST
Seoul Time and JST show the same clock time, so no adjustment is needed.
Example: 9:00 AM KST = 9:00 AM JST.
Time difference between Seoul Time and JST
The time difference between Seoul Time and JST is 0 minutes all year.
Seoul Time and JST during daylight saving time
- Seoul Time does not observe daylight saving time; it stays on UTC+9 all year.
- JST does not observe daylight saving time; it stays on UTC+9 all year.
Best time for a meeting between Seoul Time and JST
Seoul Time and JST share 8 hours of the 9 AM–5 PM working day. Any time between 9:00 AM and 5:00 PM KST lands between 9:00 AM and 5:00 PM JST, inside working hours for both.
Seoul Time to JST FAQ
What is the time difference between Seoul Time and JST?
JST and KST are on the same time all year. 9:00 AM KST = 9:00 AM JST.
What is 9 AM Seoul Time in JST?
9:00 AM KST is 9:00 AM JST.
What is 12 PM (noon) Seoul Time in JST?
12:00 PM KST is 12:00 PM JST.
Is JST ahead of or behind Seoul Time?
Neither. JST and KST keep the same clock time.
Does Seoul Time change for daylight saving time?
No. Seoul Time stays on the same offset all year, so conversions never shift for daylight saving time.
Does JST change for daylight saving time?
No. JST stays on the same offset all year, so conversions never shift for daylight saving time.
What is the best time for a meeting between Seoul Time and JST?
Seoul Time and JST share 8 hours of the 9 AM–5 PM working day. Any time between 9:00 AM and 5:00 PM KST lands between 9:00 AM and 5:00 PM JST, inside working hours for both.
Related conversions
Convert JST to Seoul Time
Convert Seoul Time to other time zones
Convert other time zones to JST
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.