MDT
UTC-6
Mountain Daylight Time
JST
UTC+9
Japan Standard Time
Mountain Daylight Time (MDT) is 15 hours ahead Japan Standard Time (JST). When it is noon in MDT, it is 3 AM in JST. This offset is fixed year-round.
All 24 Hours — MDT to JST
Click any row to see the full detail page. Current hour in MDT is highlighted.
Best Meeting Times — MDT & JST
No standard business-hours overlap between MDT and JST. Consider early morning or evening calls.
Challenging overlap
MDT and JST are 15 hours apart with no shared business-hours window. Try scheduling at 8 AM in the earlier timezone or 6 PM in the later one.
Related Time Zone Conversions
Frequently Asked Questions — MDT to JST
Mountain Daylight Time (MDT) is 15 hours ahead of Japan Standard Time (JST). MDT is UTC-6 and JST is UTC+9.
Live Now
MDT
UTC-6
13:03:33
Tuesday
JST
UTC+9
04:03:33
Wednesday
Right now, 1 PM MDT = 4 AM JST(+1 day)
Business Hours Quick Jump
Reverse Conversion
JST to MDT
Japan Standard Time → Mountain Daylight Time
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