PST to MST Time Converter
Mountain Standard Time (MST) is currently 1 hour ahead of Pacific Standard Time (PST). PST is UTC-8 and MST is UTC-7. 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 9:00 AM and 4:00 PM in PST, which is 10:00 AM to 5:00 PM in MST.
Comparing more than two places? The Overlap Zones tool shows working hours for several cities on one grid.
Hour by Hour: PST to MST
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?
PST and MST are fixed offsets, so the difference between them never changes.
PST is UTC-8, used on the North American west coast in winter. The region switches to PDT (UTC-7) from March to November.
MST is UTC-7. Most of the Mountain region switches to MDT (UTC-6) in summer, but Arizona stays on MST year round.
Frequently Asked Questions
How many hours ahead is MST compared to PST?
MST is currently 1 hour ahead of PST. PST and MST are fixed offsets, so the difference between them never changes.
What time is 9:00 AM in PST in MST?
9:00 AM in PST is 10:00 AM in MST.
What is the best time for a call between PST and MST?
Both sides are inside 9:00 AM to 5:00 PM office hours between 9:00 AM and 4:00 PM in PST, which is 10:00 AM to 5:00 PM in MST.