Popular Timezone Converters
Instant Conversion
Real-time results as you type
50+ Timezones
All major world timezones covered
Date Handling
Handles day rollover automatically
MST to JST Conversion Table
The table below shows hourly time conversions from Mountain Standard Time (MST) to Japan Standard Time (JST). JST is +16 hours from MST. Business hours (9 AM - 5 PM) are highlighted in blue for easy scheduling across these time zones.
| MST | JST | Note |
|---|
About MST & JST
Mountain Standard Time (MST)
UTC Offset: UTC-7
Regions: Denver, Phoenix, Salt Lake City
Japan Standard Time (JST)
UTC Offset: UTC+9
Regions: Tokyo, Osaka, Kyoto
What time is it now in MST?
The current time in MST is
What time is it now in JST?
The current time in JST is
The Mountain Standard Time (MST) is -16 hours behind Japan Standard Time (JST).
When to Use Timezone Conversion
Remote Meetings
Schedule calls with international teams across different time zones.
Travel Planning
Know the local time at your destination before you arrive.
Stock Markets
Track market opening and closing times across global exchanges.
Live Events
Never miss a live stream, sports event, or product launch.
Software Development
Coordinate deployments and standups with distributed teams.
International Calls
Call friends and family at appropriate hours across the world.
Frequently Asked Questions
What is the time difference between MST and JST?
JST is +16 hours from MST. Mountain Standard Time is UTC-7 and Japan Standard Time is UTC+9.
What regions use MST?
Mountain Standard Time (MST) is used in: Denver, Phoenix, Salt Lake City.
What regions use JST?
Japan Standard Time (JST) is used in: Tokyo, Osaka, Kyoto.
Is this timezone converter free?
Yes, our timezone converter is completely free with no registration required. Convert unlimited times between any supported timezones.
Does it handle daylight saving time?
Our converter uses fixed UTC offsets. For daylight saving adjustments, select the appropriate DST variant (e.g., EDT instead of EST during summer months in the US).