JST to IST converter
IST is 3 h 30 min behind JST all year.
JST to IST table
For 2 July 2026, when IST is 3 h 30 min behind JST. Other dates: see the table on the right.
| JST | IST |
|---|---|
| 12:00 AM | 8:30 PM prev. day |
| 1:00 AM | 9:30 PM prev. day |
| 2:00 AM | 10:30 PM prev. day |
| 3:00 AM | 11:30 PM prev. day |
| 4:00 AM | 12:30 AM |
| 5:00 AM | 1:30 AM |
| 6:00 AM | 2:30 AM |
| 7:00 AM | 3:30 AM |
| 8:00 AM | 4:30 AM |
| 9:00 AM | 5:30 AM |
| 10:00 AM | 6:30 AM |
| 11:00 AM | 7:30 AM |
| 12:00 PM | 8:30 AM |
| 1:00 PM | 9:30 AM |
| 2:00 PM | 10:30 AM |
| 3:00 PM | 11:30 AM |
| 4:00 PM | 12:30 PM |
| 5:00 PM | 1:30 PM |
| 6:00 PM | 2:30 PM |
| 7:00 PM | 3:30 PM |
| 8:00 PM | 4:30 PM |
| 9:00 PM | 5:30 PM |
| 10:00 PM | 6:30 PM |
| 11:00 PM | 7:30 PM |
When the difference changes
Computed from the IANA tz database (release 2026c). Governments can change these rules; the live converter uses your browser’s own copy of the database.
| 2026: from (UTC) | until (UTC) | IST vs JST |
|---|---|---|
| 1 January 2026 | 31 December 2026 | 3 h 30 min behind |
| 2027: from (UTC) | until (UTC) | IST vs JST |
|---|---|---|
| 1 January 2027 | 31 December 2027 | 3 h 30 min behind |
JST: Japan Standard Time · JST time now
Japan
IST: India Standard Time · IST time now
IST can also mean Irish Standard Time or Israel Standard Time. This page means India (Asia/Kolkata), which has one zone and no daylight saving time.
Related converters
Questions
What is the time difference between JST and IST?
IST is 3 h 30 min behind JST all year.
What is 9 am JST in IST?
9:00 am JST is 5:30 AM IST, on dates when the usual difference applies. Use the converter above for any specific date.
Which JST does this page use?
Japan Standard Time, the clock time in Japan (IANA zone Asia/Tokyo).
Which IST does this page use?
IST can also mean Irish Standard Time or Israel Standard Time. This page means India (Asia/Kolkata), which has one zone and no daylight saving time.