Timezone converter
UTC to JST Time Converter
Convert Coordinated Universal Time (UTC) to Japan Standard Time (JST). Drag the slider to test any moment — DST in either zone is handled automatically.
You picked
Live · updates every 30s
UTCUTC
Universal · UTC+0
23:04Mon, May 4
Home · driving
036912151821
TokyoGMT+9
Japan · UTC+9
08:04Tue, May 5
Morning · +9h ahead
036912151821
How it works
1. Add cities
Search any city or timezone. Up to 8 fit on screen.
2. Drag the slider
Pick a moment in any city — others sync instantly.
3. Share the view
Copy a link that locks in the exact time and cities.
Hourly reference
UTC ↔ JST every hour
| UTC | JST |
|---|---|
| 00:00 | 09:00 |
| 01:00 | 10:00 |
| 02:00 | 11:00 |
| 03:00 | 12:00 |
| 04:00 | 13:00 |
| 05:00 | 14:00 |
| 06:00 | 15:00 |
| 07:00 | 16:00 |
| 08:00 | 17:00 |
| 09:00 | 18:00 |
| 10:00 | 19:00 |
| 11:00 | 20:00 |
| 12:00 | 21:00 |
| 13:00 | 22:00 |
| 14:00 | 23:00 |
| 15:00 | 00:00 |
| 16:00 | 01:00 |
| 17:00 | 02:00 |
| 18:00 | 03:00 |
| 19:00 | 04:00 |
| 20:00 | 05:00 |
| 21:00 | 06:00 |
| 22:00 | 07:00 |
| 23:00 | 08:00 |
Note: this table uses a winter reference date. Both zones may shift by an hour during local daylight saving — the live converter above always reflects current offsets.
About these timezones
Coordinated Universal Time and Japan Standard Time
Coordinated Universal Time (UTC) corresponds to the Etc/UTC IANA zone. Japan Standard Time (JST) corresponds to Asia/Tokyo. Use the converter above for live results that account for daylight saving in both zones.