Convert UTC to JST
UTC
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JST
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JST is 9 hours ahead of UTC all year. UTC is Coordinated Universal Time, the UTC+0 reference every other zone is measured from. JST is Japan Standard Time, UTC+9 all year. Paste a Unix timestamp, an ISO 8601 string or a plain date such as June 1 2026 3:00 pm and the converter shows that moment in both zones, with UTC and Unix time alongside.
UTC to JST at a glance
| UTC | JST, all year |
|---|---|
| 00:00 | 09:00 |
| 06:00 | 15:00 |
| 09:00 | 18:00 |
| 12:00 | 21:00 |
| 15:00 | 00:00 +1d |
| 18:00 | 03:00 +1d |
| 21:00 | 06:00 +1d |
Neither UTC nor JST changes its clocks, so the table holds all year.
Common questions
- What is the time difference between UTC and JST?
- JST is 9 hours ahead of UTC all year. The table on this page lists common UTC hours with their JST equivalents, and the converter gives the exact gap for any date you enter.
- What time is it in JST right now?
- The JST panel at the top of the page shows the current local time there, next to UTC, so you can compare at a glance. The gap is the same whatever the date, so the reading never needs adjusting.
- How do I convert a specific UTC time to JST?
- Type the UTC time into the box and the panel shows the same moment in JST. For example, 09:00 in UTC on 1 June 2026 is 18:00 the same day in JST. A time with no zone is read as UTC on this page; the selector under the box switches that to JST or to your own zone, and a Unix number or an ISO 8601 string with an offset is always read as written.
- Does the UTC to JST difference change with daylight saving time?
- No. Neither UTC nor JST observes daylight saving time, so the gap is 9 hours on every day of the year and there is no transition date to watch for.