Convert JST to UTC
Japan Standard Time (JST) to Coordinated Universal Time (UTC)
When it's 12:00 PM JST, it's 3:00 AM UTC
Interactive Converter
Pick any time and date to convert between JST and UTC.
JST to UTC Conversion Table
Full 24-hour comparison. Business hours (9 AM -- 6 PM) are highlighted.
| JST | UTC |
|---|---|
| 12:00 AM | 3:00 PM -1 day |
| 1:00 AM | 4:00 PM -1 day |
| 2:00 AM | 5:00 PM -1 day |
| 3:00 AM | 6:00 PM -1 day |
| 4:00 AM | 7:00 PM -1 day |
| 5:00 AM | 8:00 PM -1 day |
| 6:00 AM | 9:00 PM -1 day |
| 7:00 AM | 10:00 PM -1 day |
| 8:00 AM | 11:00 PM -1 day |
| 9:00 AM | 12:00 AM |
| 10:00 AM | 1:00 AM |
| 11:00 AM | 2:00 AM |
| 12:00 PM | 3:00 AM |
| 1:00 PM | 4:00 AM |
| 2:00 PM | 5:00 AM |
| 3:00 PM | 6:00 AM |
| 4:00 PM | 7:00 AM |
| 5:00 PM | 8:00 AM |
| 6:00 PM | 9:00 AM |
| 7:00 PM | 10:00 AM |
| 8:00 PM | 11:00 AM |
| 9:00 PM | 12:00 PM |
| 10:00 PM | 1:00 PM |
| 11:00 PM | 2:00 PM |
Best Meeting Window
Top meeting times for teams in JST and UTC (9 AM -- 6 PM work hours, 1-hour meeting).
1 of 2 members within working hours. 1 in mid-day range (9 AM–5 PM). Outside work hours for JST.
1 of 2 members within working hours. 1 in mid-day range (9 AM–5 PM). Outside work hours for JST.
1 of 2 members within working hours. Outside work hours for JST.
Time Difference & DST
UTC is 9 hours behind JST. JST is at UTC+9 and UTC is at UTC±0.
Neither JST nor UTC has an upcoming DST transition within the next 12 months.
The conversion table above reflects the current DST state at build time. Use the interactive converter for live, date-specific conversions.
Major Cities
Japan Standard Time (JST)
- Tokyo
- Osaka
- Yokohama
Coordinated Universal Time (UTC)
- UTC
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