Converts

Convert Tokyo to KST

Convert a time in Tokyo to KST, with daylight-saving changes applied for the date you choose.

Tokyo to KST

Time in Tokyo, Japan

Time in KST, Asia

15 June 2026 at 12:00
Tokyo now
KST now

Time zone details

Tokyo, Japan

IANA zone
Asia/Tokyo
Standard offset
UTC+09:00
Daylight saving
Not observed

Daylight at the solstices

21 June
04:2719:01 (14h 35m)
21 December
06:4816:32 (9h 44m)

KST, Asia

IANA zone
Etc/GMT-9
Standard offset
UTC+09:00
Daylight saving
Not observed

Sunrise and sunset are calculated for the city centre and are accurate to about a minute. Local elevation and atmospheric conditions shift the observed horizon.

Need the reverse direction? Convert KST to Tokyo.

Frequently asked questions

What is the time difference between Tokyo and KST?+

Tokyo is UTC+09:00 and KST is UTC+09:00 in standard time. The gap between them changes during the year if either place observes daylight saving, so enter a date to see the difference on that day.

Does Tokyo observe daylight saving time?+

No. Tokyo stays on UTC+09:00 all year.

Does KST observe daylight saving time?+

No. KST stays on UTC+09:00 all year.

Why does one local time sometimes have two answers?+

When clocks go back, the hour before the change repeats, so that local reading happens twice and both instants are valid. When clocks go forward, the skipped hour never occurs, so that reading has no matching instant at all. The converter reports both cases rather than guessing.