Convert IST to JST
India Standard Time (IST) to Japan Standard Time (JST)
When it's 12:00 PM IST, it's 3:30 PM JST
Interactive Converter
Pick any time and date to convert between IST and JST.
IST to JST Conversion Table
Full 24-hour comparison. Business hours (9 AM -- 6 PM) are highlighted.
| IST | JST |
|---|---|
| 12:00 AM | 3:30 AM |
| 1:00 AM | 4:30 AM |
| 2:00 AM | 5:30 AM |
| 3:00 AM | 6:30 AM |
| 4:00 AM | 7:30 AM |
| 5:00 AM | 8:30 AM |
| 6:00 AM | 9:30 AM |
| 7:00 AM | 10:30 AM |
| 8:00 AM | 11:30 AM |
| 9:00 AM | 12:30 PM |
| 10:00 AM | 1:30 PM |
| 11:00 AM | 2:30 PM |
| 12:00 PM | 3:30 PM |
| 1:00 PM | 4:30 PM |
| 2:00 PM | 5:30 PM |
| 3:00 PM | 6:30 PM |
| 4:00 PM | 7:30 PM |
| 5:00 PM | 8:30 PM |
| 6:00 PM | 9:30 PM |
| 7:00 PM | 10:30 PM |
| 8:00 PM | 11:30 PM |
| 9:00 PM | 12:30 AM +1 day |
| 10:00 PM | 1:30 AM +1 day |
| 11:00 PM | 2:30 AM +1 day |
Best Meeting Window
Top meeting times for teams in IST and JST (9 AM -- 6 PM work hours, 1-hour meeting).
All members within working hours. Everyone in mid-day range.
All members within working hours. Everyone in mid-day range.
All members within working hours. Everyone in mid-day range.
Time Difference & DST
JST is 3 hours 30 minutes ahead of IST. IST is at UTC+5:30 and JST is at UTC+9.
Neither IST nor JST has an upcoming DST transition within the next 12 months.
The conversion table above reflects the current DST state at build time. Use the interactive converter for live, date-specific conversions.
Major Cities
India Standard Time (IST)
- Mumbai
- Delhi
- Bangalore
Japan Standard Time (JST)
- Tokyo
- Osaka
- Yokohama
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