Converts UTC to Japan Standard Time (JST), which is UTC+9. Japan does not observe daylight saving time, so the 9-hour offset is constant year-round. JST is shared by Japan and South Korea (as KST).
UTC to JST Converter
Convert Coordinated Universal Time to Japan Standard Time
How to UTC to JST
- 1.Enter the UTC time in hours and minutes.
- 2.Select a date if needed.
- 3.The JST equivalent appears instantly.
- 4.Use the swap button to convert JST to UTC.
About This Tool
Frequently Asked Questions
JST is UTC+9. Add 9 hours to UTC to get JST. This offset never changes because Japan does not use daylight saving time.
No — Japan Standard Time is UTC+9 year-round. Japan briefly used DST during the post-WWII occupation (1948-1951) but discontinued it.
Yes — Japan Standard Time (UTC+9) and Korea Standard Time (UTC+9) have the same offset. Tokyo and Seoul are always the same time.