Timezone planner

Japan Standard Time (JST) to Mountain Time (MST/MDT)

Mountain Time (MST/MDT) is 15 hours behind Japan Standard Time (JST). The gap moves between 16 hours and 15 hours during the year, because the two places change their clocks on different dates.

Japan Standard Time (JST)
8:41am
Monday 05 October · JST
Mountain Time (MST/MDT)
5:41pm
Sunday 04 October · MDT

Times as of when this page loaded.

Best time for a meeting

Working hours overlap for 1 hour: 8am–9am in Japan Standard Time (JST).

Hour by hour

Today's hours in Japan Standard Time (JST) and the same moments in Mountain Time (MST/MDT). Shaded rows are 8am–6pm in both.

Japan Standard Time (JST)Mountain Time (MST/MDT)
12am 9am−1 day
1am 10am−1 day
2am 11am−1 day
3am 12pm−1 day
4am 1pm−1 day
5am 2pm−1 day
6am 3pm−1 day
7am 4pm−1 day
8am 5pm−1 day
9am 6pm−1 day
10am 7pm−1 day
11am 8pm−1 day
12pm 9pm−1 day
1pm 10pm−1 day
2pm 11pm−1 day
3pm 12am
4pm 1am
5pm 2am
6pm 3am
7pm 4am
8pm 5am
9pm 6am
10pm 7am
11pm 8am

Questions

What is the time difference between Japan Standard Time (JST) and Mountain Time (MST/MDT)?
Mountain Time (MST/MDT) is 15 hours behind Japan Standard Time (JST). The gap moves between 16 hours and 15 hours during the year, because the two places change their clocks on different dates.
What is a good time for a meeting between Japan Standard Time (JST) and Mountain Time (MST/MDT)?
Working hours overlap for 1 hour: 8am–9am in Japan Standard Time (JST).

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