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Tokyo · Osaka · Yokohama
Schedule a fair multi-city call with the free meeting planner.
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Tokyo · Osaka · Yokohama
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Worldwide · Servers · Aviation
JST to UTC converter
Free JST to UTC converter. See Japan Standard Time and Coordinated Universal Time side by side. Live clocks, a 9 hours gap, meeting hours, and a full-day chart for Tokyo and Worldwide.
Asia/Tokyo
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JST → UTC
To · Coordinated Universal Time
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UTC
Interactive diagram
Drag the Japan hour. Watch the UTC clock change.
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UTC ← JST
Full-day chart
Full-day table. Tap a row to copy. Labels follow daylight saving.
| Japan | UTC | UTC offsets |
|---|
Meeting times
Find hours that work on both sides. Then save the slot to your calendar.
Follow along
Four short steps to convert any JST time to UTC.
Select any hour in Japan Standard Time. Smart mode uses Asia/Tokyo.
JST to UTC conversion guide
This JST to UTC converter shows Coordinated Universal Time (UTC±0) for any Japan Standard Time (UTC+9) time. Use it to schedule between Tokyo and Worldwide. Choose Smart DST for live city clocks. Choose Fixed mode when you only want the JST and UTC labels.
Japan
UTC+9
Tokyo · Osaka · Yokohama
UTC
UTC±0
Worldwide · Servers · Aviation
JST to UTC conversion turns a JST clock into the matching UTC time. Use it for calls, travel, and teams in Tokyo and Worldwide.
UTC is 9 hours behind JST. Subtract 9 hours from the JST time to get UTC. The live clocks at the top show the current JST to UTC gap.
JST is UTC+9. UTC is UTC±0. They are different names. If a region uses daylight saving, check the live labels.
Need jst to utc right now? Read the live clocks, or tap Use current time for an instant JST → UTC result.
JST to UTC time difference
See how daylight saving can change this pair.
UTC+9
Japan Standard Time (JST) is UTC+9. Smart DST uses the city clock Asia/Tokyo so daylight saving stays correct for Tokyo · Osaka · Yokohama.
UTC±0
Coordinated Universal Time (UTC) is UTC±0. Smart DST uses UTC for cities such as Worldwide · Servers · Aviation.
JST to UTC FAQ