Tokyo uses Japan Standard Time (UTC+09:00) year-round.
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Tokyo is the usual reference for JST. The city is 13 or 14 hours ahead of New York depending on US daylight saving, and 9 hours ahead of UTC. Osaka uses the same zone. Seoul matches the offset but not the IANA name.
Tokyo uses Asia/Tokyo. The current offset is UTC+09:00. Clocks on this page update from that IANA zone rather than from the server’s local time.
Tokyo, Japan is in Japan Standard Time (Asia/Tokyo). Tokyo uses Japan Standard Time (UTC+09:00) year-round.
This time zone does not observe daylight saving time Japan does not observe daylight saving time. JST remains UTC+09:00 all year.
At this moment the offset difference is +00:00 hours relative to UTC labels, meaning Tokyo compared with Osaka can be converted in the time zone converter using Asia/Tokyo and Asia/Tokyo. Daylight saving on either side is applied automatically.