MST to JST — Timezone Converter
Mountain Standard Time (UTC-7) → Japan Standard Time (UTC+9)
MSTUTC-7
--:--:--
…
Denver, United States
DST…
JSTUTC+9
--:--:--
…
Tokyo, Japan
About this conversion
Standard differenceMST is 16 hours behind JST
MST UTCUTC-7
JST UTCUTC+9
Daylight saving (DST)MST only
⚠️ One or both zones observe daylight saving time. The actual difference may temporarily shift during DST transitions.
Frequently Asked Questions
What is the time difference between MST and JST?
MST (UTC-7) is 16 hours behind JST (UTC+9) in standard time. This difference may change during daylight saving time periods.
When it is 12:00 noon MST, what time is it in JST?
When it is 12:00 PM (noon) in MST, it is 4:00 AM in JST.
How do I convert MST time to JST?
MST is 16 hours behind JST. To convert MST time to JST, add 16 hours. To convert JST time to MST, subtract 16 hours.
What cities are in the MST timezone?
Cities in the MST timezone (Mountain Standard Time) include: Denver, Phoenix, Salt Lake City, Albuquerque, Tucson, El Paso.
Do MST or JST observe daylight saving time (DST)?
MST observes daylight saving time, but JST does not. The actual time difference between them changes by 1 hour when MST switches between standard and summer time.