JST to IST Time Converter
Compare JST and IST instantly. The clocks below stay in sync with the IANA time-zone database, so daylight-saving transitions are handled automatically for both Tokyo and India.
24-Hour Comparison Timeline
Green = working hours · Yellow = early/late · Red = night
24-hour reference table
| JST (Tokyo) | IST (India) |
|---|---|
| 12:00 AM | 08:30 PM(Fri, Jul 24) |
| 01:00 AM | 09:30 PM(Fri, Jul 24) |
| 02:00 AM | 10:30 PM(Fri, Jul 24) |
| 03:00 AM | 11:30 PM(Fri, Jul 24) |
| 04:00 AM | 12:30 AM |
| 05:00 AM | 01:30 AM |
| 06:00 AM | 02:30 AM |
| 07:00 AM | 03:30 AM |
| 08:00 AM | 04:30 AM |
| 09:00 AM | 05:30 AM |
| 10:00 AM | 06:30 AM |
| 11:00 AM | 07:30 AM |
| 12:00 PM | 08:30 AM |
| 01:00 PM | 09:30 AM |
| 02:00 PM | 10:30 AM |
| 03:00 PM | 11:30 AM |
| 04:00 PM | 12:30 PM |
| 05:00 PM | 01:30 PM |
| 06:00 PM | 02:30 PM |
| 07:00 PM | 03:30 PM |
| 08:00 PM | 04:30 PM |
| 09:00 PM | 05:30 PM |
| 10:00 PM | 06:30 PM |
| 11:00 PM | 07:30 PM |
Daylight saving time
Neither Tokyo nor India observes daylight saving time — the offset between JST and IST is fixed year-round.
Working-hours overlap
1 PM–5 PM JST (9 AM–1 PM IST) — the shared 9-to-5 window for meetings.
Frequently asked questions
What is the time difference between JST and IST?+
IST (UTC+05:30) is currently 3 hours 30 minutes behind JST (UTC+09:00). This page recalculates the offset live from the IANA time-zone database, including any daylight-saving transitions.
Does JST or IST observe daylight saving time?+
Neither Tokyo nor India observes daylight saving time, so the offset stays fixed all year. Times on this page always reflect the current local rules.
What are the best meeting hours between Tokyo and India?+
Standard 9–5 working hours in Tokyo and India overlap from 1 PM to 5 PM JST (9 AM–1 PM IST). Schedule calls inside this window to keep both sides in normal business hours.
How do I quickly convert JST to IST?+
Use the live clocks and 24-hour reference table above. Pick any hour on the JST row to see the matching IST time. The Event Planner also lets you pick a specific date and share it with attendees.