JST time now (Japan Standard Time)
9:53PM
JST · UTC+9
UTC+9+14 h vs New York (you)Tokyo now: JST, UTC+9
What JST means
JST stands for Japan Standard Time, UTC+9. It is used in Japan.
Where and when JST is used
1 zone uses JST all year. Computed from tzdata under the current rules.
| Main city | Time zone | Countries | When |
|---|---|---|---|
| Tokyo | Asia/Tokyo | Japan, Australia | all year |
How long JST has been used
In the tzdata record, Tokyo has used JST since 1887.
JST in the past
Zones whose tzdata history shows JST before 2025 but that no longer use it:
- Asia/Pyongyang (Pyongyang): 1911–1945
- Asia/Seoul (Seoul): 1911–1945
- Asia/Taipei (Taipei): 1937–1945
- Asia/Hong_Kong (Hong Kong): 1941–1945
- Asia/Manila (Quezon City): 1942–1945
JST converted to other zones
Every column is a fixed offset, so this table is valid on any date. Remember that the regions behind some columns switch to summer time (EST to EDT, CET to CEST, GMT to BST); the clock in those cities is then an hour later than the column.
| JST (UTC+9) | UTC (UTC+0) | EST (UTC−5) | PST (UTC−8) | CET (UTC+1) | IST (UTC+5:30) | AEST (UTC+10) | CST (UTC−6) |
|---|---|---|---|---|---|---|---|
| 12:00 AM | 3:00 PM (−1 day) | 10:00 AM (−1 day) | 7:00 AM (−1 day) | 4:00 PM (−1 day) | 8:30 PM (−1 day) | 1:00 AM | 9:00 AM (−1 day) |
| 6:00 AM | 9:00 PM (−1 day) | 4:00 PM (−1 day) | 1:00 PM (−1 day) | 10:00 PM (−1 day) | 2:30 AM | 7:00 AM | 3:00 PM (−1 day) |
| 9:00 AM | 12:00 AM | 7:00 PM (−1 day) | 4:00 PM (−1 day) | 1:00 AM | 5:30 AM | 10:00 AM | 6:00 PM (−1 day) |
| 12:00 PM | 3:00 AM | 10:00 PM (−1 day) | 7:00 PM (−1 day) | 4:00 AM | 8:30 AM | 1:00 PM | 9:00 PM (−1 day) |
| 3:00 PM | 6:00 AM | 1:00 AM | 10:00 PM (−1 day) | 7:00 AM | 11:30 AM | 4:00 PM | 12:00 AM |
| 6:00 PM | 9:00 AM | 4:00 AM | 1:00 AM | 10:00 AM | 2:30 PM | 7:00 PM | 3:00 AM |
| 9:00 PM | 12:00 PM | 7:00 AM | 4:00 AM | 1:00 PM | 5:30 PM | 10:00 PM | 6:00 AM |
Questions
What is JST in UTC?
JST is UTC+9: 9 hours ahead of Coordinated Universal Time.
What does JST stand for?
Japan Standard Time.
Which places use JST all year?
Tokyo.
Is JST the same time as WIT?
Yes, both are UTC+9, as are HKST, KST and AWDT. Both name the same fixed offset, so a time given in one is the same moment in the other. What differs is where and in which season each is used.