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IST to JST converter
India Standard Time
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Japan Standard Time
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Japan Standard Time is always 3 hours 30 minutes ahead of India Standard Time.
When does the difference change?
The difference stays the same all year: JST is 3 hours 30 minutes ahead of IST.
Questions
What time is 9 AM IST in JST?
9 AM India Standard Time is 12:30 PM Japan Standard Time.
How many hours ahead or behind is JST from IST?
Japan Standard Time is always 3 hours 30 minutes ahead of India Standard Time.
Does the IST to JST difference change?
No, it stays the same all year.
About these time zones
IST to JST, hour by hour
| India Standard Time | Japan Standard Time |
|---|---|
| 12 AM | 3:30 AM |
| 1 AM | 4:30 AM |
| 2 AM | 5:30 AM |
| 3 AM | 6:30 AM |
| 4 AM | 7:30 AM |
| 5 AM | 8:30 AM |
| 6 AM | 9:30 AM |
| 7 AM | 10:30 AM |
| 8 AM | 11:30 AM |
| 9 AM | 12:30 PM |
| 10 AM | 1:30 PM |
| 11 AM | 2:30 PM |
| 12 PM | 3:30 PM |
| 1 PM | 4:30 PM |
| 2 PM | 5:30 PM |
| 3 PM | 6:30 PM |
| 4 PM | 7:30 PM |
| 5 PM | 8:30 PM |
| 6 PM | 9:30 PM |
| 7 PM | 10:30 PM |
| 8 PM | 11:30 PM |
| 9 PM | 12:30 AM (next day) |
| 10 PM | 1:30 AM (next day) |
| 11 PM | 2:30 AM (next day) |
Based on the clocks on Monday, October 12, 2026. Use the converter above for another date.