| | Here we convert 6:39PM Mountain Standard Time (MST) to Pacific Standard Time (PST). 
 To convert MST to PST, we subtract one hour to MST to get the following result:
 
 6:39PM MST =
 5:39PM PST
 
 
 Note that MST and PST are also referred to as Mountain Time and Pacific Time, or shortened to MT and PT.
 
 To more clearly understand how we converted 6:39PM MST to PST, see facts below:
 
 MST is GMT -07:00
 PST is GMT -08:00
 MST is one hour ahead PST
 PST is one hour behind of MST.
 
 6:40PM MST to PST
 Go here to see the next time zone conversion on our list.
 
 
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