Daylight saving time in Japan

Japan does not observe daylight saving time. Clocks in Japan remain on their standard offset year-round.

Japan does not change its clocks — it does not observe daylight saving time.

The primary IANA identifier for Japan is Asia/Tokyo. Operating systems and APIs use this identifier to compute the correct local time.

Clocks in Japan do not change — there is no daylight saving time.

Japan does not observe daylight saving time. Countries that skip DST typically cite simpler scheduling, proximity to the equator, or public preference.

All DST transition dates come from the IANA Time Zone Database (tzdata), which is the authoritative source used by operating systems worldwide. Dates refresh on every IANA release.