Time zone converter
JST to IST
Convert Japan Time — Tokyo to India Time — Mumbai — fast, accurate, and daylight-saving aware.
When it's 9:00 AM in Tokyo, it's 5:30 AM in Mumbai. Mumbai is 3½ hours behind Tokyo. Use the converter above to turn any JST time into IST, or scan the hour-by-hour table below for the full day.
—
Japan Time — Tokyo ·
—
India Time — Mumbai ·
Convert a specific timein Tokyo → — in Mumbai
JST to IST at a glance
9:00 AM JST
5:30 AM
IST · Mumbai
12:00 PM JST
8:30 AM
IST · Mumbai
5:00 PM JST
1:30 PM
IST · Mumbai
Planning a meeting between Tokyo and Mumbai
Planning a call between Tokyo and Mumbai? The best overlap during a standard 9-to-5 workday runs 12:30 PM–5:00 PM JST (9:00 AM–1:30 PM IST). Aim for that window to reach both sides during business hours.
Hour-by-hour: Tokyo to Mumbai
A full day mapped from JST to IST.
Frequently asked
Is Mumbai ahead of or behind Tokyo?
Mumbai is 3½ hours behind Tokyo.
What is 12:00 PM JST in IST?
12:00 PM in Tokyo is 8:30 AM in Mumbai.
Does this converter account for daylight saving time?
Yes. Conversions use the IANA time zone database, so JST and IST automatically reflect the correct daylight-saving offset for the current date.