MST to PST Time Converter
Pacific Standard Time (PST) is currently 1 hour behind Mountain Standard Time (MST). MST is UTC-7 and PST is UTC-8. The table below converts every hour of the day between the two, and the call planner shows where working hours line up.
Best Time for a Call
Both sides are inside 9:00 AM to 5:00 PM office hours between 10:00 AM and 5:00 PM in MST, which is 9:00 AM to 4:00 PM in PST.
Comparing more than two places? The Overlap Zones tool shows working hours for several cities on one grid.
Hour by Hour: MST to PST
Rows marked office hours fall between 9:00 AM and 5:00 PM in both places. For a specific date, use the interactive converter.
Does the Difference Change During the Year?
MST and PST are fixed offsets, so the difference between them never changes.
MST is UTC-7. Most of the Mountain region switches to MDT (UTC-6) in summer, but Arizona stays on MST year round.
PST is UTC-8, used on the North American west coast in winter. The region switches to PDT (UTC-7) from March to November.
Frequently Asked Questions
How many hours behind is PST compared to MST?
PST is currently 1 hour behind MST. MST and PST are fixed offsets, so the difference between them never changes.
What time is 9:00 AM in MST in PST?
9:00 AM in MST is 8:00 AM in PST.
What is the best time for a call between MST and PST?
Both sides are inside 9:00 AM to 5:00 PM office hours between 10:00 AM and 5:00 PM in MST, which is 9:00 AM to 4:00 PM in PST.