IST to JST Time Converter
India Standard Time → Japan Standard Time
IST
UTC+5.5
India Standard Time
JST
UTC+9
Japan Standard Time
India Standard Time (IST) is 3.5 hours ahead Japan Standard Time (JST). When it is noon in IST, it is 3:30 PM in JST. This offset is fixed year-round.
All 24 Hours — IST to JST
Click any row to see the full detail page. Current hour in IST is highlighted.
Best Meeting Times — IST & JST
Recommended windows where both IST and JST participants are within working hours (8 AM–6 PM).
Tip: When scheduling between IST and JST, 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 — IST to JST
India Standard Time (IST) is 3.5 hours ahead of Japan Standard Time (JST). IST is UTC+5.5 and JST is UTC+9.
Live Now
IST
UTC+5:30
18:43:40
Saturday
JST
UTC+9
22:13:40
Saturday
Right now, 6 PM IST = 9:30 PM JST
Business Hours Quick Jump
Reverse Conversion
JST to IST
Japan Standard Time → India Standard Time
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