JST to MT time converter
MT is 15 hours behind JST. When it is 9:00 AM in JST, it is 6:00 PM (Fri, Oct 16) in MT.
5:06 AM in JST, Saturday, October 17, 2026
JST to MT conversion table
Every hour of today in JST and the matching time in MT. Light rows are typical working hours (9:00–18:00).
| JST | MT |
|---|---|
| 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 |
Best time to call or meet
Working hours don't overlap fully. The closest fit is 7:00 AM – 9:00 AM in JST (4:00 PM – 6:00 PM in MT): working hours on one side, early or late on the other.
Daylight saving time and the difference
The difference changes during the year because JST and MT switch clocks on different dates:
- Oct 17, 2026 – Nov 1, 2026: -15h
- Nov 1, 2026 – Mar 14, 2027: -16h
- Mar 14, 2027 – Oct 17, 2027: -15h
More conversions
Questions and answers
What is the time difference between JST and MT?
MT is 15 hours behind JST.
What time is it in MT when it is 9 AM in JST?
When it is 9:00 AM in JST, it is 6:00 PM (Fri, Oct 16) in MT.
When is the best time to call MT from JST?
Working hours don't overlap fully. The closest fit is 7:00 AM – 9:00 AM in JST (4:00 PM – 6:00 PM in MT): working hours on one side, early or late on the other.
Does the time difference between JST and MT change?
Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.