JST to UTC Time Converter
Japan Standard Time → Coordinated Universal Time
JST
UTC+9
Japan Standard Time
UTC
UTC+0
Coordinated Universal Time
Japan Standard Time (JST) is 9 hours behind Coordinated Universal Time (UTC). When it is noon in JST, it is 3 AM in UTC. This offset is fixed year-round.
All 24 Hours — JST to UTC
Click any row to see the full detail page. Current hour in JST is highlighted.
Best Meeting Times — JST & UTC
Recommended windows where both JST and UTC participants are within working hours (8 AM–6 PM).
Tip: When scheduling between JST and UTC, 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 UTC
Japan Standard Time (JST) is 9 hours behind Coordinated Universal Time (UTC). JST is UTC+9 and UTC is UTC+0.
Live Now
JST
UTC+9
00:51:38
Thursday
UTC
UTC+0
15:51:38
Wednesday
Right now, 12 AM JST = 3 PM UTC(−1 day)
Business Hours Quick Jump
Reverse Conversion
UTC to JST
Coordinated Universal Time → Japan Standard Time
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