What does JST stand for?

JST stands for Japan Standard Time. It is UTC+9, used in Japan. Japan has no daylight saving, so JST (UTC+9) applies all year.

What is the UTC offset of JST?

JST (Japan Standard Time) is UTC+9, meaning it is 9 hours ahead of Coordinated Universal Time.

Does JST change for daylight saving time?

Regions on JST generally keep this offset year-round rather than switching for daylight saving.

JST — Japan Standard Time

JST

Japan Standard Time

UTC+9 Standard time

Japan

Now in Tokyo: 4:59 PM

Quick facts

Abbreviation: JST
Full name: Japan Standard Time
UTC offset: UTC+9
Type: Standard time
Used in: Japan
Example zone: Asia/Tokyo

Cities that use JST

Time in Tokyo

About JST

JST is the abbreviation for Japan Standard Time, a time zone offset of UTC+9. It applies in Japan.

Japan has no daylight saving, so JST (UTC+9) applies all year.

Time-zone abbreviations are convenient but not unique or official — several codes are shared by more than one zone. When precision matters, use the underlying IANA zone name (for example Asia/Tokyo) or the UTC offset UTC+9 instead.

Frequently asked questions

What does JST stand for?: JST stands for Japan Standard Time. It is UTC+9, used in Japan. Japan has no daylight saving, so JST (UTC+9) applies all year.
What is the UTC offset of JST?: JST (Japan Standard Time) is UTC+9, meaning it is 9 hours ahead of Coordinated Universal Time.
Does JST change for daylight saving time?: Regions on JST generally keep this offset year-round rather than switching for daylight saving.