Pst vs. Mst
Pstnoun
standard time in the 8th time zone west of Greenwich, reckoned at the 120th meridian west; used in far western states of the United States
Mstnoun
Mountain Standard Time, the time of the 105th meridian, used in the mountain states of the U.S.
Mstnoun
standard time in the 7th time zone west of Greenwich, reckoned at the 105th meridian west; used in the mountain states of the United States
