Tokyo to KST Time Converter
Convert Tokyo to Korea Standard Time instantly.
Scroll the timeline to check any hour of the day.
Tokyo
JST
5:27
Korea Standard Time
KST
5:27
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How the Tokyo to KST time difference works
KST is the same time as Tokyo. Tokyo (JST) is a city in Japan. Korea Standard Time (KST) is the time zone of South Korea. For example, 9:00 AM Tokyo is 9:00 AM KST. Scroll the timeline above to convert any moment, or use the chart below for a quick reference.
Time difference
None
Daylight saving
Neither
Tokyo offset
UTC+9
KST offset
UTC+9
Tokyo to KST conversion chart
| Tokyo (JST) | Korea Standard Time (KST) |
|---|---|
| 12:00 AM | 12:00 AM |
| 1:00 AM | 1:00 AM |
| 2:00 AM | 2:00 AM |
| 3:00 AM | 3:00 AM |
| 4:00 AM | 4:00 AM |
| 5:00 AM | 5:00 AM |
| 6:00 AM | 6:00 AM |
| 7:00 AM | 7:00 AM |
| 8:00 AM | 8:00 AM |
| 9:00 AM | 9:00 AM |
| 10:00 AM | 10:00 AM |
| 11:00 AM | 11:00 AM |
| 12:00 PM | 12:00 PM |
| 1:00 PM | 1:00 PM |
| 2:00 PM | 2:00 PM |
| 3:00 PM | 3:00 PM |
| 4:00 PM | 4:00 PM |
| 5:00 PM | 5:00 PM |
| 6:00 PM | 6:00 PM |
| 7:00 PM | 7:00 PM |
| 8:00 PM | 8:00 PM |
| 9:00 PM | 9:00 PM |
| 10:00 PM | 10:00 PM |
| 11:00 PM | 11:00 PM |
Best time to meet
A standard 9 to 5 workday overlaps from 9:00 AM to 5:00 PM Tokyo (9:00 AM to 5:00 PM KST). Schedule inside that window to catch both coasts during business hours.
Cities in each time zone
Tokyo (JST)
OsakaNagoyaSapporoFukuokaKobeKyoto
Korea Standard Time (KST)
SeoulBusanIncheonDaeguDaejeon
Tokyo to KST questions
Is KST ahead of or behind Tokyo?
KST is the same time as Tokyo. So 9:00 AM Tokyo is 9:00 AM KST, and 5:00 PM Tokyo is 5:00 PM KST.
What time is it in KST when it is 12:00 PM Tokyo?
When it is 12:00 PM (noon) Tokyo in Tokyo, it is 12:00 PM KST in Korea Standard Time.
How many hours difference is there between Tokyo and KST?
Tokyo and KST are in the same time zone, so there is no time difference.
Do Tokyo and KST observe daylight saving time?
Neither Tokyo nor Korea Standard Time observes daylight saving time, and they share the same offset, so they stay in sync all year.
What is the best time to schedule a meeting between Tokyo and KST?
A standard 9-to-5 workday overlaps from 9:00 AM to 5:00 PM Tokyo (9:00 AM to 5:00 PM KST). Scheduling inside that window keeps the call during business hours in both Tokyo and Korea Standard Time.
Which cities use Tokyo and KST?
Tokyo (JST) covers cities such as Osaka, Nagoya, Sapporo, Fukuoka, Kobe, Kyoto. Korea Standard Time (KST) covers cities such as Seoul, Busan, Incheon, Daegu, Daejeon.