Current Time in JST
Japan Standard Time
About JST Japan Standard Time
The standard time in Japan, observed year-round. Japan does not observe daylight saving time. It is also used by South Korea (as Korea Standard Time, KST) and parts of Indonesia (as WIT).
UTC Offset: +09:00
JST at a glance
| Right now | 06:35 on Wednesday |
|---|---|
| UTC offset | UTC+09:00 (9 hours ahead of UTC) |
| Full name | Japan Standard Time |
| Countries | 2 |
| IANA zones | 2 |
What is JST?
JST is a time zone that is currently UTC+09:00 - that's 9 hours ahead of UTC. Its full name is Japan Standard Time. Right now the local time on JST is 06:35. Today 2 countries (including Australia and Japan) and 2 IANA database zones sit at this offset, which is why JST is a useful shorthand even though the exact local rules differ from place to place.
How to convert JST to UTC
For quick planning, use today's offset as a rule of thumb: 12:00 UTC = 21:00 local time, and 09:00 local time = 00:00 UTC. The live clock above is the safest reference when daylight saving or regional rules may apply.
Which countries use JST?
JST is used across Australia and Japan. Open a country to see all of its cities and their local time.
IANA time zones in JST
JST maps to the IANA database zones Asia/Tokyo and Japan. Each zone page shows its exact rules, including any daylight saving changes.
💡 Tip: Comparing times? JST is 9 hours ahead of UTC. Use the IANA links and country links on this page when you need the exact local rule for a real place, not just the offset.
JST - Frequently asked questions
What is JST?
JST is a time zone currently UTC+09:00 (9 hours ahead of UTC). Its full name is Japan Standard Time.
What is the UTC offset of JST?
JST is UTC+09:00 right now - 9 hours ahead of UTC.
Which countries are on JST?
JST is used in Australia and Japan.
What time is it in JST now?
The current time on JST is 06:35 on Wednesday. The clock above updates every second.
How Alarm.now explains JST
Abbreviation, offset, and IANA zones
JST is shown as a time-zone group for Japan Standard Time with offset +09:00. The page links the abbreviation to the IANA zones and countries that use it, so users and search engines can distinguish a short label from an exact time-zone rule set.
When to use a specific IANA page
Use this group page for an overview of the abbreviation and offset. Use a linked IANA time-zone page when you need exact daylight-saving rules for a calendar, app, or future-date comparison.