5:23 PM
Wednesday, August 12, 2026
UTC-07:00Fixed offset
Time Zone Converter
MST to JSTTime Converter
Convert Mountain Standard Time to Japan Standard Time, compare their live UTC offsets and explore a complete 24-hour conversion table.
Live clocksDST aware24-hour table
Live comparison
Current local times
From
MST
Mountain Standard Time
To
JST
Japan Standard Time
Enter a local date and time using MST.
JST
9:23 AM
Thursday, August 13, 2026
UTC+09:00Fixed offset
Time difference
JST is 16 hours ahead of MST
Hourly comparison
24 hours24-hour conversion table
Compare each hour in MST with JST.
| Hour | MST | JST | Difference |
|---|---|---|---|
| 0 | 5:23 PM Wednesday, August 12, 2026 | 9:23 AM Thursday, August 13, 2026 | +16h |
| 1 | 6:23 PM Wednesday, August 12, 2026 | 10:23 AM Thursday, August 13, 2026 | +16h |
| 2 | 7:23 PM Wednesday, August 12, 2026 | 11:23 AM Thursday, August 13, 2026 | +16h |
| 3 | 8:23 PM Wednesday, August 12, 2026 | 12:23 PM Thursday, August 13, 2026 | +16h |
| 4 | 9:23 PM Wednesday, August 12, 2026 | 1:23 PM Thursday, August 13, 2026 | +16h |
| 5 | 10:23 PM Wednesday, August 12, 2026 | 2:23 PM Thursday, August 13, 2026 | +16h |
| 6 | 11:23 PM Wednesday, August 12, 2026 | 3:23 PM Thursday, August 13, 2026 | +16h |
| 7 | 12:23 AM Thursday, August 13, 2026 | 4:23 PM Thursday, August 13, 2026 | +16h |
| 8 | 1:23 AM Thursday, August 13, 2026 | 5:23 PM Thursday, August 13, 2026 | +16h |
| 9 | 2:23 AM Thursday, August 13, 2026 | 6:23 PM Thursday, August 13, 2026 | +16h |
| 10 | 3:23 AM Thursday, August 13, 2026 | 7:23 PM Thursday, August 13, 2026 | +16h |
| 11 | 4:23 AM Thursday, August 13, 2026 | 8:23 PM Thursday, August 13, 2026 | +16h |
| 12 | 5:23 AM Thursday, August 13, 2026 | 9:23 PM Thursday, August 13, 2026 | +16h |
| 13 | 6:23 AM Thursday, August 13, 2026 | 10:23 PM Thursday, August 13, 2026 | +16h |
| 14 | 7:23 AM Thursday, August 13, 2026 | 11:23 PM Thursday, August 13, 2026 | +16h |
| 15 | 8:23 AM Thursday, August 13, 2026 | 12:23 AM Friday, August 14, 2026 | +16h |
| 16 | 9:23 AM Thursday, August 13, 2026 | 1:23 AM Friday, August 14, 2026 | +16h |
| 17 | 10:23 AM Thursday, August 13, 2026 | 2:23 AM Friday, August 14, 2026 | +16h |
| 18 | 11:23 AM Thursday, August 13, 2026 | 3:23 AM Friday, August 14, 2026 | +16h |
| 19 | 12:23 PM Thursday, August 13, 2026 | 4:23 AM Friday, August 14, 2026 | +16h |
| 20 | 1:23 PM Thursday, August 13, 2026 | 5:23 AM Friday, August 14, 2026 | +16h |
| 21 | 2:23 PM Thursday, August 13, 2026 | 6:23 AM Friday, August 14, 2026 | +16h |
| 22 | 3:23 PM Thursday, August 13, 2026 | 7:23 AM Friday, August 14, 2026 | +16h |
| 23 | 4:23 PM Thursday, August 13, 2026 | 8:23 AM Friday, August 14, 2026 | +16h |
About MST
The fixed standard-time offset used in parts of North America.
- Full name
- Mountain Standard Time
- Type
- Fixed UTC offset
- Regions
- United States, Canada, Mexico
Target time zone
About JST
The standard time used throughout Japan.
- Full name
- Japan Standard Time
- Type
- Fixed UTC offset
- Regions
- Japan
Reverse this conversion
Convert JST back to MST.
FAQ
MST to JST time FAQ
Common questions about converting Mountain Standard Time to Japan Standard Time, their UTC offsets and daylight-saving behavior.
What is the time difference between MST and JST?
JST is 16 hours ahead of MST on this date.
What time is 9:00 AM MST in JST?
When it is 9:00 AM in MST, it is 1:00 AM in JST on Thursday, August 13, 2026.
Is JST ahead of MST?
Yes. JST is currently 16 hours ahead of MST.
Do MST and JST use daylight saving time?
MST is defined as a fixed UTC offset. Its offset does not change automatically according to the selected date. JST is defined as a fixed UTC offset. Its offset does not change automatically according to the selected date.
Where are MST and JST used?
MST is associated with United States, Canada, Mexico. JST is associated with Japan. Time-zone abbreviations can be ambiguous, so TimeInOne uses the specific definitions shown on this page.