Converts Japan Standard Time (JST) to Coordinated Universal Time (UTC). Subtract 9 hours from JST to get UTC. Since Japan does not observe daylight saving time, this calculation is the same year-round.
JST to UTC Converter
Convert Japan Standard Time to Coordinated Universal Time
How to JST to UTC
- 1.Enter the JST time in hours and minutes.
- 2.Select a date if needed.
- 3.The UTC equivalent appears instantly.
- 4.Use the swap button to convert UTC to JST.
About This Tool
Frequently Asked Questions
9 AM UTC. Subtract 9 hours from JST.
JST is 14 hours ahead of EST (13 hours ahead of EDT). A 9 AM meeting in Tokyo is 7 PM the previous day in New York.
The overlap between JST (9 AM - 6 PM) and GMT (9 AM - 5 PM) is 6 PM - 2 AM JST, or 9 AM - 5 PM GMT. Morning in London is evening in Tokyo.