JST: Japan Standard Time
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JST: Japan Standard Time
JST stands for Japan Standard Time, used in Japan. It runs UTC+9, with no clock changes recorded for 2026under current rules.
Current JST time
Local times come from your browser's IANA time zone data.
JST time compared with UTC
JST runs UTC+9 throughout 2026 under current rules. When it is 12:00 UTC the clock in JST reads 21:00.
These examples use January 15 and July 15, 2026. Where clocks change, other dates can use a different offset. Use the live converter for your exact date.
| UTC | JST |
|---|---|
| 00:00 | 09:00 |
| 03:00 | 12:00 |
| 06:00 | 15:00 |
| 09:00 | 18:00 |
| 12:00 | 21:00 |
| 15:00 | 00:00 next day |
| 18:00 | 03:00 next day |
| 21:00 | 06:00 next day |
When the clocks change in the JST zone
No clock changes are recorded for the JST zone in 2026 or 2027 under the time zone rules used for this build. The listed zones keep their UTC offsets during these years. Governments can revise these rules; future dates are projections.
Cities that keep JST
These places run on JST: Japan Standard Time, the IANA zone behind JST. Each links to its own live clock.
Tokyo, Yokohama, Osaka, Nagoya, Sapporo, Fukuoka, Kawasaki, Kobe, Kyoto, Saitama, Hiroshima, Sendai.
Convert JST to another zone
JST to PSTJST to MSTJST to CSTJST to ESTJST to HSTJST to GMTJST to UTCJST to BST
Common questions about JST
What does JST stand for?
JST is Japan Standard Time, the civil time used in Japan. On this site it resolves to the IANA time zone JST: Japan Standard Time, which is what your operating system and browser use to work out the actual offset on any given date.
What is JST in UTC?
JST is UTC+9 throughout 2026 under current rules. The table above shows UTC conversions.