Pacific Standard Time
PST means UTC−08:00 throughout the year. Pacific Time follows regional clock rules and uses UTC−08:00 on your selected date.
Use PT for local civil time →Convert Pacific Standard Time to Mountain Standard Time. Compare dates, seasonal differences and meeting hours.
PST is 1h behind MST in 2026.
9 AM PST = 10 AM MST
Selected date: November 3, 2026. Fixed abbreviations retain their stated UTC offsets.
November 3, 2026 · Date changes are marked.
| PST | MST |
|---|---|
| 12:00 AM | 1:00 AM |
| 1:00 AM | 2:00 AM |
| 2:00 AM | 3:00 AM |
| 3:00 AM | 4:00 AM |
| 4:00 AM | 5:00 AM |
| 5:00 AM | 6:00 AM |
| 6:00 AM | 7:00 AM |
| 7:00 AM | 8:00 AM |
| 8:00 AM | 9:00 AM |
| 9:00 AM | 10:00 AM |
| 10:00 AM | 11:00 AM |
| 11:00 AM | 12:00 PM |
| PST | MST |
|---|---|
| 12:00 PM | 1:00 PM |
| 1:00 PM | 2:00 PM |
| 2:00 PM | 3:00 PM |
| 3:00 PM | 4:00 PM |
| 4:00 PM | 5:00 PM |
| 5:00 PM | 6:00 PM |
| 6:00 PM | 7:00 PM |
| 7:00 PM | 8:00 PM |
| 8:00 PM | 9:00 PM |
| 9:00 PM | 10:00 PM |
| 10:00 PM | 11:00 PM |
| 11:00 PM | 12:00 AM +1 day |
These examples start on 2026-11-03 in MST.
PST means UTC−08:00 throughout the year. Pacific Time follows regional clock rules and uses UTC−08:00 on your selected date.
Use PT for local civil time →MST means UTC−07:00 throughout the year. Mountain Time follows regional clock rules and uses UTC−07:00 on your selected date.
Use MT for local civil time →09:00 in PST converts to 10:00 in MST on every date in 2026. The destination has the same calendar date.
Every calendar date is included, not just workdays. Date ranges include both endpoints. Based on IANA 2026e; future rules may change.
Your complete source day: 2026-11-03. Each range shows which destination date to use.
Range starts are included; ends are excluded. 24:00 means midnight at the end of that date. Repeated hours appear separately with their UTC offsets. The strip is proportional to elapsed time.
The difference between PST and MST stays the same throughout 2026.
Neither selected clock changes its UTC offset during 2026.
Both selected labels are fixed offsets, so seasonal clock changes do not alter this conversion.
Every date calculated with your working windows. 261 selected PST workdays; public holidays are not applied.
Start a 60-minute meeting in PST 09:00–15:00.
These starts fit both working windows on every selected PST workday in 2026, using a 15-minute start grid. The end of each range is the last valid start.
PST: 09:00–17:00, Mon, Tue, Wed, Thu, Fri. MST: 09:00–17:00, Mon, Tue, Wed, Thu, Fri.
Overnight shifts belong to their start weekday. Host workday means the source calendar date. Repeated local times use the first occurrence.
PST is fixed at UTC−08:00; MST is fixed at UTC−07:00. Los Angeles (PT) to Denver (MT) uses regional rules instead. On 2026-11-03, 09:00 at the source becomes 10:00 at the destination (MST). Choose the local-city option above when that is the clock you mean.
Adamstown, Pitcairn Islands keep the same UTC−08:00 offset as fixed PST throughout 2026 under the published rules. Matching an offset does not mean every place uses the abbreviation PST.
Phoenix, United States keep the same UTC−07:00 offset as fixed MST throughout 2026 under the published rules. Matching an offset does not mean every place uses the abbreviation MST.
The difference stays constant throughout 2026: MST is 1h ahead compared with PST.
09:00 in PST on 2026-11-03 is 10:00 in MST on 2026-11-03. This selected time stays on the same date in both places. Other times can cross midnight.
Your selected working windows share 7h on 2026-11-03. The planner above checks the whole meeting duration and shows suitable start times. Edit the windows to match your team.