MST to Yokohama Time Converter
JST is 16 hours ahead of MST. 9:00 AM MST = 1:00 AM JST (next day).
JST is 16 hours ahead of MST at the moment. To convert MST to Yokohama Time, add 16 hours to the MST time: 9:00 AM MST = 1:00 AM JST (next day).
MST (Mountain Time) is used in Denver, Salt Lake City, Albuquerque, Calgary, Edmonton; Phoenix (Arizona) all year. Yokohama Time (Yokohama time) is used in Yokohama, Japan.
Most of Arizona uses MST all year and does not switch to MDT.
MST to Yokohama Time time conversion table
MST to Yokohama Time on 6 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| MST | Yokohama Time | Day |
|---|---|---|
| 12:00 AM MST | 4:00 PM JST | — |
| 1:00 AM MST | 5:00 PM JST | — |
| 2:00 AM MST | 6:00 PM JST | — |
| 3:00 AM MST | 7:00 PM JST | — |
| 4:00 AM MST | 8:00 PM JST | — |
| 5:00 AM MST | 9:00 PM JST | — |
| 6:00 AM MST | 10:00 PM JST | night |
| 7:00 AM MST | 11:00 PM JST | night |
| 8:00 AM MST | 12:00 AM JST | next day |
| 9:00 AM MST | 1:00 AM JST | next day |
| 10:00 AM MST | 2:00 AM JST | next day |
| 11:00 AM MST | 3:00 AM JST | next day |
| 12:00 PM MST | 4:00 AM JST | next day |
| 1:00 PM MST | 5:00 AM JST | next day |
| 2:00 PM MST | 6:00 AM JST | next day |
| 3:00 PM MST | 7:00 AM JST | next day |
| 4:00 PM MST | 8:00 AM JST | next day |
| 5:00 PM MST | 9:00 AM JST | next day |
| 6:00 PM MST | 10:00 AM JST | next day |
| 7:00 PM MST | 11:00 AM JST | next day |
| 8:00 PM MST | 12:00 PM JST | next day |
| 9:00 PM MST | 1:00 PM JST | next day |
| 10:00 PM MST | 2:00 PM JST | next day |
| 11:00 PM MST | 3:00 PM JST | next day |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert MST to Yokohama Time
Add 16 hours to the MST time to get Yokohama Time.
Example: 9:00 AM MST = 1:00 AM JST (next day).
Across midnight: 10:00 PM MST = 2:00 PM JST (next day). The date changes, so always check the day as well as the hour.
Time difference between MST and Yokohama Time
The time difference between MST and Yokohama Time is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:
- 31 Dec 2025 – 7 Mar 2026: Yokohama Time is 16 hours ahead of MST.
- 8 Mar 2026 – 31 Oct 2026: Yokohama Time is 15 hours ahead of MST.
- 1 Nov 2026 – 30 Dec 2026: Yokohama Time is 16 hours ahead of MST.
MST and Yokohama Time during daylight saving time
- MST next changes on 14 Mar 2027: clocks go forward one hour at 01:59 local time, from MST (UTC−7) to MDT (UTC−6).
- Yokohama Time does not observe daylight saving time; it stays on UTC+9 all year.
Best time for a meeting between MST and Yokohama Time
MST and Yokohama Time have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 3:00 PM MST, which is 7:00 AM JST.
MST to Yokohama Time FAQ
What is the time difference between MST and Yokohama Time?
Right now JST is 16 hours ahead of MST. The gap changes 3 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM MST in Yokohama Time?
9:00 AM MST is 1:00 AM JST (next day).
What is 12 PM (noon) MST in Yokohama Time?
12:00 PM MST is 4:00 AM JST (next day).
Is Yokohama Time ahead of or behind MST?
JST is 16 hours ahead of MST, so it is later in Yokohama Time than in MST.
Does MST change for daylight saving time?
Yes. MST next changes on 14 Mar 2027, when clocks go forward one hour from MST to MDT.
Does Yokohama Time change for daylight saving time?
No. Yokohama Time stays on the same offset all year, so conversions never shift for daylight saving time.
What is the best time for a meeting between MST and Yokohama Time?
MST and Yokohama Time have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 3:00 PM MST, which is 7:00 AM JST.
Is MT the same as MST?
MST is the winter (standard) name of Mountain Time (MT). From March to November the same clocks are called MDT. This converter always uses the one in force on the date you choose.
Related conversions
Convert Yokohama Time to MST
Convert MST to other time zones
Convert other time zones to Yokohama Time
Learn more
Updated 6 November 2026. Time zone data: IANA tz database.