Convert MST to PST
See the current MST to PST time difference, compare hours side by side, and schedule calls or meetings with calendar export tools.
How MST to PST Works
MST is UTC-7 and PST is UTC-8, so PST is typically 1 hour behind MST. This converter applies the offset difference automatically for accurate results.
Hour-by-Hour Time Table
Use the visual grid and hour-by-hour table to compare MST and PST across the day. Check overlapping business hours and export selected times to ICS, Google Calendar, or Gmail.
Schedule Meetings Accurately
Plan meetings between MST and PST with automatic DST tracking and historical timezone changes. Conversions stay accurate using the IANA timezone database.
How to Convert MST to PST
Open the MST to PST converter: Go to https://www.xconvert.com/time-converter/mst-to-pst-converter to load a visual comparison grid with MST and PST aligned on a 24-hour timeline. This page is useful when you are scheduling a client call between Denver or Phoenix-based teams working on Mountain time and Los Angeles, Seattle, or Vancouver colleagues working on Pacific time.
Add comparison cities if your schedule includes more locations: Click + Add City and search for cities that commonly work alongside MST and PST teams, such as Phoenix, Los Angeles, or Seattle for North American sales, logistics, and software coordination. This is especially practical for remote teams that hand work between Mountain and Pacific offices, or for travel planning across western Canada, the western United States, and northern Mexico.
Select the meeting window on the grid: Click Select, then drag across the MST row to highlight a time range in purple; you can resize it with the left and right handles or move the whole block by dragging the center. For example, if you drag from 9:00 MST to 12:00 MST, the grid shows 8:00 PST to 11:00 PST, which helps confirm that a Mountain morning meeting lands in the Pacific morning as well and works well for team standups, support coverage, or partner check-ins.
Export and share the selected time: Once a range is selected, use the export options for ICS download, Google Calendar, Gmail, Copy to clipboard, or Share link. That makes it easy to send a confirmed MST-to-PST meeting slot to a distributed operations team, a recruiting panel, or a customer success group so everyone sees the appointment in their own local calendar context.
Understanding the MST to PST Time Difference
MST is Mountain Standard Time, UTC-7, and PST is Pacific Standard Time, UTC-8. MST is 1 hour ahead of PST, which means PST is -1 hours behind MST. In practical scheduling terms, when it is 9:00 MST, it is 8:00 PST; when it is 12:00 MST, it is 11:00 PST; when it is 15:00 MST, it is 14:00 PST; and when it is 18:00 MST, it is 17:00 PST.
This one-hour gap is small enough that business coordination is usually straightforward, but it still matters for deadlines, live support shifts, and calendar invites. A noon status review in Mountain time reaches Pacific participants at 11:00 in the morning, while a late-afternoon Mountain handoff at 18:00 reaches Pacific teams at 17:00, which can be the edge of the workday for engineering, media, and customer support teams.
DST changes are important because MST and PST are both standard-time abbreviations, not year-round labels for every local clock. The DST counterpart of MST is MDT, and the DST counterpart of PST is PDT. During the parts of the year when regions switch to daylight saving time, the labels used by local clocks may change from MST to MDT and from PST to PDT, so users comparing current local times should make sure they are matching the correct seasonal abbreviation for the date shown in the tool.
MST is used in Canada, Mexico, and the United States, while PST is used in Canada, Mexico, the Philippines, and the United States. For cross-border work, this matters in industries such as freight, tourism, cloud operations, and customer support, where teams may coordinate between Mountain-region offices and Pacific-region hubs without leaving the broader western North American business day.
Best Times for Calls and Meetings Between MST and PST
Because MST is 1 hour ahead of PST, most normal work hours overlap cleanly. A Mountain time meeting scheduled at 9:00 MST appears as 8:00 PST, which is useful for early planning calls, sales pipeline reviews, and shift-start coordination between teams on both sides of the one-hour gap.
Midday is often the easiest window for recurring meetings because both sides are fully into the workday. For example, 12:00 MST = 11:00 PST, making that slot practical for account management check-ins, product demos, and operations reviews where both Mountain and Pacific participants need active business-hour availability.
Afternoon coordination also remains simple. 15:00 MST = 14:00 PST works well for project updates, recruiting interviews, and vendor meetings, while 18:00 MST = 17:00 PST is useful for end-of-day handoffs from Mountain teams to Pacific teams that still have some business time remaining. That pattern is common in software delivery, regional logistics, and support organizations that cover multiple western time zones.
For recurring meetings, the most reliable overlap is generally the shared morning-to-afternoon business block visible on the grid. In practice, using examples like 9:00 MST / 8:00 PST, 12:00 MST / 11:00 PST, and 15:00 MST / 14:00 PST helps teams choose times that avoid very early Pacific starts or late Mountain finishes while keeping the meeting inside standard office hours.
Frequently Asked Questions
What is the time difference between MST and PST?
MST is 1 hour ahead of PST. In offset terms, MST is UTC-7 and PST is UTC-8, so Pacific Standard Time is -1 hours behind Mountain Standard Time. This means a meeting set for the same clock label in MST will appear one hour earlier in PST.
When is 9 AM MST in PST?
9:00 MST = 8:00 PST. This is a common conversion for west-coast coordination because a Mountain-based team can start a morning meeting at 9:00 while Pacific participants join at 8:00, which is still workable for many office schedules, especially in technology, media, and support roles.
Does the difference between MST and PST change during DST?
The standard-time relationship shown here is based on MST and PST, which are the standard-time abbreviations. Their daylight saving counterparts are MDT and PDT, so during daylight saving periods the abbreviation in use may change depending on the location and date. When planning meetings across seasons, it is important to confirm whether your participants are observing standard time or daylight time on that specific day.
What is 12 PM MST in PST?
12:00 MST = 11:00 PST. This is one of the most convenient conversion points for business scheduling because it keeps both sides in late morning or midday working hours, making it a strong option for recurring team calls, demos, and internal reviews.
What is 3 PM MST in PST?
15:00 MST = 14:00 PST. That makes a 3 PM Mountain meeting a 2 PM Pacific meeting, which is often ideal for project coordination, legal reviews, and vendor conversations that need both teams available well before the end of the day.
What is 6 PM MST in PST?
18:00 MST = 17:00 PST. This timing is useful for end-of-day status updates or handoff meetings, especially when a Mountain-based team wants to wrap work while giving Pacific colleagues one more hour in their standard business day.
What is the best meeting time between MST and PST?
The best meeting times are usually the shared work-hour windows where both sides are comfortably online. Practical examples include 9:00 MST / 8:00 PST, 12:00 MST / 11:00 PST, and 15:00 MST / 14:00 PST, since those slots support sales calls, engineering standups, and customer meetings without pushing either side too far outside normal office hours.
Which countries use MST and PST?
MST is used in Canada, Mexico, and the United States. PST is used in Canada, Mexico, the Philippines, and the United States. This makes MST-to-PST conversion relevant not only for domestic U.S. scheduling but also for cross-border coordination in North America and Pacific-linked business operations.