IST to JST Converter: India Time to Japan Time

Live Clocks

India Standard Time

IST - UTC+5:30

Japan Standard Time

JST - UTC+9

Custom Time Converter

Enter any date and time in IST to see the corresponding Japan Standard Time.

Japan Standard Time Result

24-Hour Reference Table

IST hours starting from midnight UTC. The offset is fixed - no seasonal variation.

IST (UTC+5:30)	JST (UTC+9)

How to Convert IST to JST

Formula (Fixed - no DST in either zone)

JST = IST + 3:30

Example: 12:00 PM IST = 3:30 PM JST (same day)

DST Note

Neither India nor Japan observes DST. IST is always UTC+5:30 and JST is always UTC+9. The gap is a fixed 3 hours 30 minutes year-round. No seasonal adjustment is needed.

Frequently Asked Questions

JST is exactly 3 hours 30 minutes ahead of IST. This offset is fixed year-round since neither India nor Japan observes DST.

12:00 PM IST = 3:30 PM JST (same day).

No. Neither country observes DST. India uses a fixed UTC+5:30 and Japan a fixed UTC+9, making IST - JST conversions straightforward. Japan abolished DST in 1952; India established IST in 1906 and has never observed DST.

All of Japan uses JST, including Tokyo, Osaka, Kyoto, Hiroshima, Sapporo, and Fukuoka. Japan has used a single nationwide time zone since 1896.