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