Tokyo to MST Time Converter
Convert Tokyo to Mountain Time instantly.
Scroll the timeline to check any hour of the day.
Tokyo
JST
5:27
Mountain Time
MST
2:27
Tokyo is on standard time (JST), while MST is on daylight savings (MDT) right now.
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How the Tokyo to MST time difference works
MST is 15 hours behind Tokyo. Tokyo (JST) is a city in Japan. Mountain Time (MST) is the US Mountain time zone. For example, 9:00 AM Tokyo is 6:00 PM MST. Scroll the timeline above to convert any moment, or use the chart below for a quick reference.
Time difference
15 hours
Daylight saving
MST only
Tokyo offset
UTC+9
MST offset
UTC-7
Tokyo to MST conversion chart
| Tokyo (JST) | Mountain Time (MST) |
|---|---|
| 12:00 AM | 9:00 AM -1 day |
| 1:00 AM | 10:00 AM -1 day |
| 2:00 AM | 11:00 AM -1 day |
| 3:00 AM | 12:00 PM -1 day |
| 4:00 AM | 1:00 PM -1 day |
| 5:00 AM | 2:00 PM -1 day |
| 6:00 AM | 3:00 PM -1 day |
| 7:00 AM | 4:00 PM -1 day |
| 8:00 AM | 5:00 PM -1 day |
| 9:00 AM | 6:00 PM -1 day |
| 10:00 AM | 7:00 PM -1 day |
| 11:00 AM | 8:00 PM -1 day |
| 12:00 PM | 9:00 PM -1 day |
| 1:00 PM | 10:00 PM -1 day |
| 2:00 PM | 11:00 PM -1 day |
| 3:00 PM | 12:00 AM |
| 4:00 PM | 1:00 AM |
| 5:00 PM | 2:00 AM |
| 6:00 PM | 3:00 AM |
| 7:00 PM | 4:00 AM |
| 8:00 PM | 5:00 AM |
| 9:00 PM | 6:00 AM |
| 10:00 PM | 7:00 AM |
| 11:00 PM | 8:00 AM |
Cities in each time zone
Tokyo (JST)
OsakaNagoyaSapporoFukuokaKobeKyoto
Mountain Time (MST)
DenverSalt Lake CityAlbuquerqueBoiseColorado Springs
Tokyo to MST questions
Is MST ahead of or behind Tokyo?
MST is 15 hours behind Tokyo. So 9:00 AM Tokyo is 6:00 PM MST, and 5:00 PM Tokyo is 2:00 AM MST.
What time is it in MST when it is 12:00 PM Tokyo?
When it is 12:00 PM (noon) Tokyo in Tokyo, it is 9:00 PM MST in Mountain Time.
How many hours difference is there between Tokyo and MST?
There is a 15 hours difference. Mountain Time (MST) runs 15 hours behind Tokyo (JST).
Do Tokyo and MST observe daylight saving time?
Mountain Time observes daylight saving time but Tokyo does not, so the difference between them changes by an hour twice a year.
What is the best time to schedule a meeting between Tokyo and MST?
A standard 9-to-5 workday in Tokyo and Mountain Time does not overlap, so pick the early morning in the later zone or the late evening in the earlier zone.
Which cities use Tokyo and MST?
Tokyo (JST) covers cities such as Osaka, Nagoya, Sapporo, Fukuoka, Kobe, Kyoto. Mountain Time (MST) covers cities such as Denver, Salt Lake City, Albuquerque, Boise, Colorado Springs.