Convert Japan Standard Time (JST) to Mountain Standard Time (MST) instantly. Free, fast and accurate time zone converter with real-time updates.
| JST Time | MST Time |
|---|---|
| 12:00 AM JST | 8:00 AM MST |
| 12:30 AM JST | 8:30 AM MST |
| 1:00 AM JST | 9:00 AM MST |
| 1:30 AM JST | 9:30 AM MST |
| 2:00 AM JST | 10:00 AM MST |
| 2:30 AM JST | 10:30 AM MST |
| 3:00 AM JST | 11:00 AM MST |
| 3:30 AM JST | 11:30 AM MST |
| 4:00 AM JST | 12:00 PM MST |
| 4:30 AM JST | 12:30 PM MST |
| 5:00 AM JST | 1:00 PM MST |
| 5:30 AM JST | 1:30 PM MST |
| 6:00 AM JST | 2:00 PM MST |
| 6:30 AM JST | 2:30 PM MST |
| 7:00 AM JST | 3:00 PM MST |
| 7:30 AM JST | 3:30 PM MST |
| 8:00 AM JST | 4:00 PM MST |
| 8:30 AM JST | 4:30 PM MST |
| 9:00 AM JST | 5:00 PM MST |
| 9:30 AM JST | 5:30 PM MST |
| 10:00 AM JST | 6:00 PM MST |
| 10:30 AM JST | 6:30 PM MST |
| 11:00 AM JST | 7:00 PM MST |
| 11:30 AM JST | 7:30 PM MST |
| 12:00 PM JST | 8:00 PM MST |
| 12:30 PM JST | 8:30 PM MST |
| 1:00 PM JST | 9:00 PM MST |
| 1:30 PM JST | 9:30 PM MST |
| 2:00 PM JST | 10:00 PM MST |
| 2:30 PM JST | 10:30 PM MST |
| 3:00 PM JST | 11:00 PM MST |
| 3:30 PM JST | 11:30 PM MST |
| 4:00 PM JST | 12:00 AM MST |
| 4:30 PM JST | 12:30 AM MST |
| 5:00 PM JST | 1:00 AM MST |
| 5:30 PM JST | 1:30 AM MST |
| 6:00 PM JST | 2:00 AM MST |
| 6:30 PM JST | 2:30 AM MST |
| 7:00 PM JST | 3:00 AM MST |
| 7:30 PM JST | 3:30 AM MST |
| 8:00 PM JST | 4:00 AM MST |
| 8:30 PM JST | 4:30 AM MST |
| 9:00 PM JST | 5:00 AM MST |
| 9:30 PM JST | 5:30 AM MST |
| 10:00 PM JST | 6:00 AM MST |
| 10:30 PM JST | 6:30 AM MST |
| 11:00 PM JST | 7:00 AM MST |
| 11:30 PM JST | 7:30 AM MST |
Mountain Standard Time (MST) is 16 hours behind Japan Standard Time (JST). When converting from JST to MST, you need to subtract 16 hours to get the correct time.
When it's 12:00 PM (noon) in Japan Standard Time, it's 8:00 PM in Mountain Standard Time. This is because MST is 16 hours behind JST.
When it's 12:00 AM (midnight) in Japan Standard Time, it's 8:00 AM in Mountain Standard Time.
Japan Standard Time (JST) has a UTC offset of +9:00, while Mountain Standard Time (MST) has a UTC offset of -7:00.
Simply subtract 16 hours to the JST time. For example, 3:00 PM JST becomes 11:00 PM MST.
The best time depends on both parties' schedules. A common overlap during business hours (9 AM - 5 PM) would be when it's late afternoon in JST. Use our converter to find the perfect time.
Daylight Saving Time (DST) observance varies by region. Some areas within Japan Standard Time and Mountain Standard Time zones may observe DST, which can temporarily change the time difference by 1 hour.
Japan Standard Time (JST) is used by various countries and regions around the world. The UTC offset of +9:00 is shared by multiple time zones.
Mountain Standard Time (MST) is used by various countries and regions around the world. With a UTC offset of -7:00, this time zone covers multiple geographic areas.
Yes! Remember that MST is always 16 hours behind JST. If it's noon in JST, it's 8:00 PM in MST. Bookmark this page for quick reference!
Trading forex? Check our Forex Market Hours tool to see which markets are open right now — live in your local timezone.