MST to JST Time Converter
Mountain Standard Time to Japan Standard Time — live converter with a full hour-by-hour table
Right now it is 14:31 in MST (UTC-06:00) and 05:31 in JST (UTC+09:00). JST is 15 hours ahead of MST (+15h).
Time now in MST
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Time now in JST
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MST to JST conversion table
| MST | JST | MST | JST |
|---|---|---|---|
| 00:00 | 15:00 | 12:00 | 03:00 |
| 01:00 | 16:00 | 13:00 | 04:00 |
| 02:00 | 17:00 | 14:00 | 05:00 |
| 03:00 | 18:00 | 15:00 | 06:00 |
| 04:00 | 19:00 | 16:00 | 07:00 |
| 05:00 | 20:00 | 17:00 | 08:00 |
| 06:00 | 21:00 | 18:00 | 09:00 |
| 07:00 | 22:00 | 19:00 | 10:00 |
| 08:00 | 23:00 | 20:00 | 11:00 |
| 09:00 | 00:00 | 21:00 | 12:00 |
| 10:00 | 01:00 | 22:00 | 13:00 |
| 11:00 | 02:00 | 23:00 | 14:00 |
Best time to call or meet
Standard business hours, expressed in both zones:
- 9:00–17:00 in MST is 00:00 to 08:00 in JST
- 9:00–17:00 in JST is 18:00 to 02:00 in MST
FAQ
What is the time difference between MST and JST?
JST is 15 hours ahead of MST. MST is UTC-06:00 and JST is UTC+09:00.
What is the best time to call from MST to JST?
9:00 to 17:00 in MST corresponds to 00:00 to 08:00 in JST. Schedule calls inside the business-hours overlap of both zones.
More about these zones
- Mountain Standard TimeUTC-06:00
- Japan Standard TimeUTC+09:00
- Convert JST to MST insteadreverse direction
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