JST
UTC+9
Japan Standard Time
IST
UTC+5.5
India Standard Time
Japan Standard Time (JST) is 3.5 hours behind India Standard Time (IST). When it is noon in JST, it is 8:30 AM in IST. This offset is fixed year-round.
All 24 Hours — JST to IST
Click any row to see the full detail page. Current hour in JST is highlighted.
Best Meeting Times — JST & IST
Recommended windows where both JST and IST participants are within working hours (8 AM–6 PM).
Tip: When scheduling between JST and IST, aim for the “Best” windows above. These times keep both parties within normal working hours, avoiding early-morning or late-evening fatigue.
Related Time Zone Conversions
Frequently Asked Questions — JST to IST
Japan Standard Time (JST) is 3.5 hours behind India Standard Time (IST). JST is UTC+9 and IST is UTC+5.5.
Live Now
JST
UTC+9
06:57:54
Tuesday
IST
UTC+5:30
03:27:54
Tuesday
Right now, 6 AM JST = 2:30 AM IST
Business Hours Quick Jump
Reverse Conversion
IST to JST
India Standard Time → Japan Standard Time
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