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Timezone converter
PST to MST currently uses Pitcairn Time in America/Los_Angeles and Mountain Time in America/Phoenix as the live reference pair, with a +0h live gap. PST to MST matters whenever Los Angeles and Phoenix need to coordinate across a +0h gap. The PST side covers United States and Mexico, while MST covers United States and Mexico — that country mix is the practical reason this conversion shows up in calendars rather than the abstract offset math.
Last updated recently. Offset math, DST behavior, and city coverage on both sides are refreshed from the live timezone dataset during the page revalidation window.
From
Pitcairn Time
America/Los_Angeles · PDT -07:00
Major markets in this grouping include Los Angeles, Tijuana, San Diego, Mexicali.
To
Mountain Time
America/Phoenix · MST -07:00
Major markets in this grouping include Phoenix, Ciudad Juárez, Calgary, Edmonton.
Current gap
+0h
PST -07:00 vs MST -07:00
9-to-5 overlap
8h
PST 9:00 AM previous day to 5:00 PM previous day
Representative countries
United States, Mexico, and Canada / United States, Mexico, and Canada
Based on the busiest city and zone usage found in the current dataset.
PST (Los Angeles, -07:00) to MST (Phoenix, -07:00) is currently a +0h conversion. Live coverage on the PST side is anchored by Los Angeles, Tijuana, San Diego, and Mexicali; the MST side draws from Phoenix, Ciudad Juárez, Calgary, and Edmonton.
PST to MST matters whenever Los Angeles and Phoenix need to coordinate across a +0h gap. The PST side covers United States and Mexico, while MST covers United States and Mexico — that country mix is the practical reason this conversion shows up in calendars rather than the abstract offset math.
Both reference zones sit inside America, so this is a regional comparison rather than a long-haul conversion. The gap of +0h mostly affects intra-continental travel, regional logistics, and America-wide calendars.
PST follows seasonal clock changes through America/Los_Angeles, while MST stays on a fixed offset year-round. That asymmetry is the real differentiator on this page: the gap widens or narrows by an hour twice a year, so calendar invites scheduled in one season often look wrong in the other.
PST and MST sit exactly 0h apart, leaving a generous 8h of shared 9-to-5 time. With that much overlap, this pair behaves almost like a single workday, so meeting times are negotiable rather than forced into a narrow corner of the calendar.
Reference zone, current offsets, country and city anchors, overlap math, and date-shift answers for PST to MST.
Reference pair
America/Los_Angeles -> America/Phoenix
Live offsets
PST -07:00 vs MST -07:00
Meaning split
Pitcairn Time / Mountain Time
Country anchors
United States, Mexico, and Canada -> United States, Mexico, and Canada
City anchors
Los Angeles, Tijuana, San Diego, Mexicali -> Phoenix, Ciudad Juárez, Calgary, Edmonton
Workday overlap
8h window: PST 9:00 AM previous day-5:00 PM previous day
Morning answer
9 AM PST = 9:00 AM MST, same day
Evening answer
6 PM PST = 6:00 PM MST, same day
Same-offset labels can share the same hour while still landing in different countries, calendars, cities, and workday windows. These notes show the practical context behind this conversion.
PST to MST is pinned to America/Los_Angeles -> America/Phoenix, with the shorthand labels shown as context. The city anchors are Los Angeles, Tijuana, San Diego, Mexicali on the PST side and Phoenix, Ciudad Juárez, Calgary, Edmonton on the MST side, with +0h between the live reference zones.
The 12 popular-hour answers include 12 same-day conversions, 0 next-day conversions, and 0 previous-day conversions. That distribution is what separates this page from a static offset chart.
Nearby labels sharing a current offset include PDT (From side), GMT-7 (From side), MST (From side), YT (From side), GMT-7 (To side), PDT (To side). They may match mathematically, but their country calendars, city anchors, and common search intent differ from this exact pair.
PST: United States (US); 616 mapped cities; capital Washington, D.C.; English; USD United States dollar | PST: Mexico (MX); 16 mapped cities; capital Mexico City; Spanish; MXN Mexican peso | PST: Canada (CA); 107 mapped cities; capital Ottawa; English, French; CAD Canadian dollar | PST: Pitcairn (PN); 1 mapped cities; capital Adamstown; English; NZD New Zealand dollar | MST: United States (US); 187 mapped cities; capital Washington, D.C.; English; USD United States dollar | MST: Mexico (MX); 1 mapped cities; capital Mexico City; Spanish; MXN Mexican peso | MST: Canada (CA); 34 mapped cities; capital Ottawa; English, French; CAD Canadian dollar
Offset behavior, DST gap changes, local calendar evidence, and the day-shift pattern across the most common conversion hours.
PST/MST is a same wall-clock offset: America/Los_Angeles currently reads -07:00, America/Phoenix reads -07:00, and the live delta is +0h. This class decides whether the page behaves like a same-day planner or a handoff planner.
America/Los_Angeles changes from -07:00 (PDT) to -08:00 (PST) on November 1, 2026 at about 1:00 AM.
No country holiday snapshot is attached to this exact pair yet, so the page leans on city anchors, IANA zones, offsets, and the live conversion table instead of pretending a local calendar exists.
Across the 12 popular-hour answers, this pair has 12 same-day answers, 0 next-day answers, 0 previous-day answers. That mix is specific to the current America/Los_Angeles -> America/Phoenix relationship and helps users see whether dates must be written explicitly in invites, travel plans, and release schedules.
Same-offset converter clusters can look identical if the page only shows a numeric offset. This audit states whether the route should be indexed, which canonical peer it follows when consolidated, and what pair-specific evidence keeps the page useful.
This pair remains indexable because the route has enough pair-specific context: America/Los_Angeles -> America/Phoenix, country anchors, city anchors, calendar notes, and day-shift examples.
PST and MST currently share a wall-clock offset, so the page has to prove its value through civil context rather than math alone. The current reference zones are America/Los_Angeles and America/Phoenix.
PDT (From side, -07:00), GMT-7 (From side, -07:00), MST (From side, -07:00), YT (From side, -07:00), GMT-7 (To side, -07:00), PDT (To side, -07:00) The page keeps these labels visible so SGT/HKT/GST-style clusters do not blur into one generic offset page.
PST/MST uses 12 same-day answers, 0 next-day answers, 0 previous-day answers; 8h strict workday overlap; source zones America/Los_Angeles and America/Phoenix; country anchors United States, Mexico, and Canada -> United States, Mexico, and Canada.
Common places, calendars, markets, languages, and operating contexts behindPST and MST.
MST
MST is Mountain Standard Time, but the label is risky because North American Mountain-region cities do not all behave the same year-round. Denver-style locations can move to MDT while Arizona-style planning often stays on standard time.
MST
MST conversions should be pinned to the representative IANA zone before use. The practical context can involve Arizona, the US Mountain region, Canada or Mexico-facing schedules, outdoor tourism, sports broadcasts, and cross-border operations.
Same-offset conversions can still land in different public-holiday, language, currency, and city-anchor contexts. These rows use the country profile and holiday snapshots behind each side of the pair.
PST
616 mapped city anchors; zones America/Los_Angeles.capital Washington, D.C.; English; USD United States dollar
Holiday snapshot: New Year's Day (Jan 1, Public) · Martin Luther King, Jr. Day (Jan 19, Public) · Lincoln's Birthday (Feb 12, Observance) · Presidents Day (Feb 16, Public) · Good Friday (Apr 3, Public)
PST
16 mapped city anchors; zones America/Tijuana.capital Mexico City; Spanish; MXN Mexican peso
Holiday snapshot: New Year's Day (Jan 1, Public) · Constitution Day (Feb 2, Public) · Benito Juárez's birthday (Mar 16, Public) · Maundy Thursday (Apr 2, Bank) · Good Friday (Apr 3, Bank)
PST
107 mapped city anchors; zones America/Vancouver.capital Ottawa; English, French; CAD Canadian dollar
Holiday snapshot: New Year's Day (Jan 1, Public) · Louis Riel Day (Feb 16, Public) · Islander Day (Feb 16, Public) · Heritage Day (Feb 16, Public) · Family Day (Feb 16, Public)
PST
1 mapped city anchors; zones Pacific/Pitcairn.capital Adamstown; English; NZD New Zealand dollar
Holiday snapshot: No holiday snapshot attached for the current year.
MST
187 mapped city anchors; zones America/Phoenix, America/Denver.capital Washington, D.C.; English; USD United States dollar
Holiday snapshot: New Year's Day (Jan 1, Public) · Martin Luther King, Jr. Day (Jan 19, Public) · Lincoln's Birthday (Feb 12, Observance) · Presidents Day (Feb 16, Public) · Good Friday (Apr 3, Public)
MST
1 mapped city anchors; zones America/Ciudad_Juarez.capital Mexico City; Spanish; MXN Mexican peso
Holiday snapshot: New Year's Day (Jan 1, Public) · Constitution Day (Feb 2, Public) · Benito Juárez's birthday (Mar 16, Public) · Maundy Thursday (Apr 2, Bank) · Good Friday (Apr 3, Bank)
These are the labels most likely to be confused with either side of this conversion. A matching UTC offset does not mean the same country, calendar, market, source convention, or user intent.
PST and PDT match on offset right now, but the page should not collapse them: they carry different city anchors, country calendars, currencies, holidays, and user intent.
PST and GMT-7 match on offset right now, but the page should not collapse them: they carry different city anchors, country calendars, currencies, holidays, and user intent.
PST and MST match on offset right now, but the page should not collapse them: they carry different city anchors, country calendars, currencies, holidays, and user intent.
PST and YT match on offset right now, but the page should not collapse them: they carry different city anchors, country calendars, currencies, holidays, and user intent.
PST and AKDT are close enough to be confused in search, but they are not the same clock label and should be pinned to exact IANA zones.
PST and AKST are close enough to be confused in search, but they are not the same clock label and should be pinned to exact IANA zones.
MST and MDT are close enough to be confused in search, but they are not the same clock label and should be pinned to exact IANA zones.
MST and GMT-7 match on offset right now, but the page should not collapse them: they carry different city anchors, country calendars, currencies, holidays, and user intent.
MST and PDT match on offset right now, but the page should not collapse them: they carry different city anchors, country calendars, currencies, holidays, and user intent.
MST and PST match on offset right now, but the page should not collapse them: they carry different city anchors, country calendars, currencies, holidays, and user intent.
MST and YT match on offset right now, but the page should not collapse them: they carry different city anchors, country calendars, currencies, holidays, and user intent.
MST and AKDT are close enough to be confused in search, but they are not the same clock label and should be pinned to exact IANA zones.
Abbreviations with the same UTC offset can still represent different countries, cities, currencies, languages, and civil-time histories. This roster keeps thePST to MST page grounded in those concrete places.
PST: United States (US); 616 mapped cities; zones America/Los Angeles; city anchors Los Angeles (America/Los_Angeles, pop 3,820,914), San Diego (America/Los_Angeles, pop 1,404,452), San Jose (America/Los_Angeles, pop 997,368), San Francisco (America/Los_Angeles, pop 827,526); official United States of America; capital Washington, D.C.; region Americas; subregion North America; population 340,110,988; area 9,525,067 km2; languages English; currency USD United States dollar.
PST: Mexico (MX); 16 mapped cities; zones America/Tijuana; city anchors Tijuana (America/Tijuana, pop 1,922,523), Mexicali (America/Tijuana, pop 1,032,686), Ensenada (America/Tijuana, pop 443,807), Rosarito (America/Tijuana, pop 100,660); official United Mexican States; capital Mexico City; region Americas; subregion North America; population 130,575,786; area 1,964,375 km2; languages Spanish; currency MXN Mexican peso.
PST: Canada (CA); 107 mapped cities; zones America/Vancouver; city anchors Vancouver (America/Vancouver, pop 662,248), Surrey (America/Vancouver, pop 568,322), Victoria (America/Vancouver, pop 289,625), Burnaby (America/Vancouver, pop 249,125); official Canada; capital Ottawa; region Americas; subregion North America; population 41,651,653; area 9,984,670 km2; languages English, French; currency CAD Canadian dollar.
PST: Pitcairn (PN); 1 mapped cities; zones Pacific/Pitcairn; city anchors Adamstown (Pacific/Pitcairn, pop 46); official Pitcairn Group of Islands; capital Adamstown; region Oceania; subregion Polynesia; population 35; area 47 km2; languages English; currency NZD New Zealand dollar.
MST: United States (US); 187 mapped cities; zones America/Phoenix, America/Denver; city anchors Phoenix (America/Phoenix, pop 1,650,070), Denver (America/Denver, pop 729,019), El Paso (America/Denver, pop 678,815), Albuquerque (America/Denver, pop 564,559); official United States of America; capital Washington, D.C.; region Americas; subregion North America; population 340,110,988; area 9,525,067 km2; languages English; currency USD United States dollar.
MST: Mexico (MX); 1 mapped cities; zones America/Ciudad Juarez; city anchors Ciudad Juárez (America/Ciudad_Juarez, pop 1,512,450); official United Mexican States; capital Mexico City; region Americas; subregion North America; population 130,575,786; area 1,964,375 km2; languages Spanish; currency MXN Mexican peso.
MST: Canada (CA); 34 mapped cities; zones America/Edmonton; city anchors Calgary (America/Edmonton, pop 1,306,784), Edmonton (America/Edmonton, pop 1,010,899), Lethbridge (America/Edmonton, pop 103,197), Red Deer (America/Edmonton, pop 100,844); official Canada; capital Ottawa; region Americas; subregion North America; population 41,651,653; area 9,984,670 km2; languages English, French; currency CAD Canadian dollar.
Same-offset converter pages can look deceptively alike. These records pin the page to the exact abbreviations, IANA zones, countries, and city anchors behind PST and MST.
PST (pst) is not marked ambiguous in the abbreviation catalog. Meaning records: Pitcairn Time at UTC-08:00; listed zones Pacific/Pitcairn; America/Los Angeles; America/Tijuana; America/Vancouver; source label Pitcairn Time - Adamstown.
PST currently maps to 4 country footprints in the converter dataset: United States (US), Mexico (MX), Canada (CA), Pitcairn (PN). The footprint spans 4 IANA zones across 10 city anchors.
PST city anchors in this indexed page family: Los Angeles [los-angeles-US, US, America/Los_Angeles, pop 3,820,914]; Tijuana [tijuana-MX, MX, America/Tijuana, pop 1,922,523]; San Diego [san-diego-US, US, America/Los_Angeles, pop 1,404,452]; Mexicali [mexicali-MX, MX, America/Tijuana, pop 1,032,686]; San Jose [san-jose-US, US, America/Los_Angeles, pop 997,368]; San Francisco [san-francisco-US, US, America/Los_Angeles, pop 827,526]; Seattle [seattle-US, US, America/Los_Angeles, pop 780,995]; Vancouver [vancouver-CA, CA, America/Vancouver, pop 662,248]; Portland [portland-5746545-US, US, America/Los_Angeles, pop 652,503]; Las Vegas [las-vegas-US, US, America/Los_Angeles, pop 641,903].
PST: United States (US); 616 mapped cities; zones America/Los Angeles; city anchors Los Angeles (America/Los_Angeles, pop 3,820,914), San Diego (America/Los_Angeles, pop 1,404,452), San Jose (America/Los_Angeles, pop 997,368), San Francisco (America/Los_Angeles, pop 827,526); official United States of America; capital Washington, D.C.; region Americas; subregion North America; population 340,110,988; area 9,525,067 km2; languages English; currency USD United States dollar. PST: Mexico (MX); 16 mapped cities; zones America/Tijuana; city anchors Tijuana (America/Tijuana, pop 1,922,523), Mexicali (America/Tijuana, pop 1,032,686), Ensenada (America/Tijuana, pop 443,807), Rosarito (America/Tijuana, pop 100,660); official United Mexican States; capital Mexico City; region Americas; subregion North America; population 130,575,786; area 1,964,375 km2; languages Spanish; currency MXN Mexican peso. PST: Canada (CA); 107 mapped cities; zones America/Vancouver; city anchors Vancouver (America/Vancouver, pop 662,248), Surrey (America/Vancouver, pop 568,322), Victoria (America/Vancouver, pop 289,625), Burnaby (America/Vancouver, pop 249,125); official Canada; capital Ottawa; region Americas; subregion North America; population 41,651,653; area 9,984,670 km2; languages English, French; currency CAD Canadian dollar. PST: Pitcairn (PN); 1 mapped cities; zones Pacific/Pitcairn; city anchors Adamstown (Pacific/Pitcairn, pop 46); official Pitcairn Group of Islands; capital Adamstown; region Oceania; subregion Polynesia; population 35; area 47 km2; languages English; currency NZD New Zealand dollar.
MST (mst) is not marked ambiguous in the abbreviation catalog. Meaning records: Mountain Time at UTC-07:00; listed zones America/Phoenix; America/Edmonton; America/Ciudad Juarez; America/Denver; source label Mountain Time - Phoenix, Tucson, Mesa, Chandler.
MST currently maps to 3 country footprints in the converter dataset: United States (US), Mexico (MX), Canada (CA). The footprint spans 4 IANA zones across 10 city anchors.
MST city anchors in this indexed page family: Phoenix [phoenix-US, US, America/Phoenix, pop 1,650,070]; Ciudad Juárez [ciudad-juarez-MX, MX, America/Ciudad_Juarez, pop 1,512,450]; Calgary [calgary-CA, CA, America/Edmonton, pop 1,306,784]; Edmonton [edmonton-CA, CA, America/Edmonton, pop 1,010,899]; Denver [denver-US, US, America/Denver, pop 729,019]; El Paso [el-paso-US, US, America/Denver, pop 678,815]; Albuquerque [albuquerque-US, US, America/Denver, pop 564,559]; Tucson [tucson-US, US, America/Phoenix, pop 542,629]; Mesa [mesa-US, US, America/Phoenix, pop 471,825]; Colorado Springs [colorado-springs-US, US, America/Denver, pop 456,568].
MST: United States (US); 187 mapped cities; zones America/Phoenix, America/Denver; city anchors Phoenix (America/Phoenix, pop 1,650,070), Denver (America/Denver, pop 729,019), El Paso (America/Denver, pop 678,815), Albuquerque (America/Denver, pop 564,559); official United States of America; capital Washington, D.C.; region Americas; subregion North America; population 340,110,988; area 9,525,067 km2; languages English; currency USD United States dollar. MST: Mexico (MX); 1 mapped cities; zones America/Ciudad Juarez; city anchors Ciudad Juárez (America/Ciudad_Juarez, pop 1,512,450); official United Mexican States; capital Mexico City; region Americas; subregion North America; population 130,575,786; area 1,964,375 km2; languages Spanish; currency MXN Mexican peso. MST: Canada (CA); 34 mapped cities; zones America/Edmonton; city anchors Calgary (America/Edmonton, pop 1,306,784), Edmonton (America/Edmonton, pop 1,010,899), Lethbridge (America/Edmonton, pop 103,197), Red Deer (America/Edmonton, pop 100,844); official Canada; capital Ottawa; region Americas; subregion North America; population 41,651,653; area 9,984,670 km2; languages English, French; currency CAD Canadian dollar.
PST is a North or South American civil-time label, currently 7h behind UTC at -07:00. The label covers 4 IANA zones across 4 countries, with Los Angeles as the busiest live reference. The busiest cities using PST in the current catalog are Los Angeles, Tijuana, San Diego, Mexicali, and San Jose. The lead live reference on this page is Los Angeles (America/Los_Angeles), currently at -07:00 (PDT). Those cities are what give PST its actual feel rather than the abstract offset. PST currently shows -07:00, but America/Los_Angeles observes seasonal clock changes — the next transition is around November 1, 2026. That means the offset on this page is a snapshot, not a permanent fact, so long-range scheduling should pin the underlying IANA zone instead of the abbreviation.
PST reads cleanly across the Americas in this dataset, but the same letters can mean different things elsewhere (notably CST, EST, and IST overlap with non-American labels). Pin the IANA zone when the audience is international. America/Los_Angeles has an upcoming offset change on November 1, 2026. After that point, PST on this page will read a different UTC offset until the next transition, so any saved timestamp should anchor to the IANA zone rather than the abbreviation. For precise work, the safest equivalent of PST is the exact IANA zone used by your city or system. America/Los_Angeles sits at -07:00, behind UTC, which means daily logs in this zone reach a new calendar date after UTC does — relevant for date-aligned reports and billing cutoffs.
PST should not be blindly swapped with nearby labels. Adjacent references in the catalog: PDT (-07:00, Currently sits on the same UTC offset); GMT-7 (-07:00, Currently sits on the same UTC offset); MST (-07:00, Currently sits on the same UTC offset); YT (-07:00, Currently sits on the same UTC offset); AKDT (-08:00, Runs on a nearby UTC offset); AKST (-08:00, Runs on a nearby UTC offset).
PST has 1 meaning record, offset range UTC-08:00 to UTC-07:00, labels Pitcairn Time, and 4 country footprints across 4 IANA zones.
MST is a North or South American civil-time label, currently 7h behind UTC at -07:00. The label covers 4 IANA zones across 3 countries, with Phoenix as the busiest live reference. The busiest cities using MST in the current catalog are Phoenix, Ciudad Juárez, Calgary, Edmonton, and Denver. The lead live reference on this page is Phoenix (America/Phoenix), currently at -07:00 (MST). Those cities are what give MST its actual feel rather than the abstract offset. MST is stable on America/Phoenix year-round, with no seasonal clock changes in the next year. That makes it a low-friction choice for recurring meetings and broadcast schedules — but software still prefers the IANA zone because governments can change civil-time rules independently of the short code.
MST reads cleanly across the Americas in this dataset, but the same letters can mean different things elsewhere (notably CST, EST, and IST overlap with non-American labels). Pin the IANA zone when the audience is international. America/Phoenix does not show an offset change in the next year, which makes MST predictable for short-term scheduling. Predictable is not the same as permanent — civil-time rules still get changed by governments on relatively short notice. For precise work, the safest equivalent of MST is the exact IANA zone used by your city or system. America/Phoenix sits at -07:00, behind UTC, which means daily logs in this zone reach a new calendar date after UTC does — relevant for date-aligned reports and billing cutoffs.
MST should not be blindly swapped with nearby labels. Adjacent references in the catalog: MDT (-06:00, Shares the mountain time family); GMT-7 (-07:00, Currently sits on the same UTC offset); PDT (-07:00, Currently sits on the same UTC offset); PST (-07:00, Currently sits on the same UTC offset); YT (-07:00, Currently sits on the same UTC offset); AKDT (-08:00, Runs on a nearby UTC offset).
MST has 1 meaning record, offset range UTC-07:00 to UTC-06:00, labels Mountain Time, and 3 country footprints across 4 IANA zones.
PST country anchor United States: The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic consisting of 50 states and a federal capital district, Washington, D.C. The 48 contiguous states border Canada to the north and Mexico to the south, with the semi-exclave of Alaska in the northwest and the archipelago of Hawaii in the Pacific Ocean. The United States also asserts sovereignty over five major island territories and various uninhabited islands in Oceania and the Caribbean. It is a megadiverse country, with the world's third-largest land area and third-largest population, exceeding 341 million. Source: Wikipedia.
MST country anchor United States: The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic consisting of 50 states and a federal capital district, Washington, D.C. The 48 contiguous states border Canada to the north and Mexico to the south, with the semi-exclave of Alaska in the northwest and the archipelago of Hawaii in the Pacific Ocean. The United States also asserts sovereignty over five major island territories and various uninhabited islands in Oceania and the Caribbean. It is a megadiverse country, with the world's third-largest land area and third-largest population, exceeding 341 million. Source: Wikipedia.
MST is Mountain Standard Time, but the label is risky because North American Mountain-region cities do not all behave the same year-round. Denver-style locations can move to MDT while Arizona-style planning often stays on standard time.
MST conversions should be pinned to the representative IANA zone before use. The practical context can involve Arizona, the US Mountain region, Canada or Mexico-facing schedules, outdoor tourism, sports broadcasts, and cross-border operations.
PST/MST uses America/Los_Angeles -> America/Phoenix, offset delta +0h, overlap 8h, route /convert/pst/mst/, and live abbreviation readings PDT/MST.
Reference fields include this converter pair's abbreviation records, representative IANA zones, current offsets, city anchors, country profiles, overlap math, conversion examples, and dossier notes.
PST coverage on this page is led by Los Angeles, United States, Tijuana, Mexico, San Diego, United States, and Mexicali, Mexico, with 2 more in the live dataset. That mix is what makes PST feel anchored to West Coast and Pacific-edge American activity in practice rather than just an abbreviation on a chart.
MST coverage is led by Phoenix, United States, Ciudad Juárez, Mexico, Calgary, Canada, and Edmonton, Canada, with 2 more anchoring the wider label family. Combined with the PST side, this conversion ends up describing intra-America regional logistics and travel coordination.
Adjust the time. Digits roll like an odometer, and the swap button flips the zones.
Quick conversions for 9 AM, noon, 3 PM, 6 PM, and 9 PM based on today's local calendar.
| PST | MST | Day relation |
|---|---|---|
| 9:00 AM | 9:00 AMSun, May 24 | same day |
| 12:00 PM | 12:00 PMSun, May 24 | same day |
| 3:00 PM | 3:00 PMSun, May 24 | same day |
| 6:00 PM | 6:00 PMSun, May 24 | same day |
| 9:00 PM | 9:00 PMSun, May 24 | same day |
Quick conversions for 9 AM, noon, 3 PM, 6 PM, and 9 PM based on today's local calendar.
| MST | PST | Day relation |
|---|---|---|
| 9:00 AM | 9:00 AMSun, May 24 | same day |
| 12:00 PM | 12:00 PMSun, May 24 | same day |
| 3:00 PM | 3:00 PMSun, May 24 | same day |
| 6:00 PM | 6:00 PMSun, May 24 | same day |
| 9:00 PM | 9:00 PMSun, May 24 | same day |
PST to MST ranges from PST 9:00 AM (which lands at MST 9:00 AM) through PST 9:00 PM (MST 9:00 PM). PST and MST are close enough that this direction reads almost like a same-zone schedule — most PST invites land on a sensible MST hour without any extra effort.
MST to PST ranges from MST 9:00 AM (which lands at PST 9:00 AM) through MST 9:00 PM (PST 9:00 PM). MST and PST are close enough that this direction reads almost like a same-zone schedule — most MST invites land on a sensible PST hour without any extra effort.
These direct answers are here for the exact-intent searches people actually use, like “10 AM PST to MST” or “4 PM PST in MST”.
8 AM PST = 8:00 AM MST (08:00). On today's live calendar that lands on Sun, May 24 in MST, which means the answer is a same day conversion rather than a static offset lookup.
9 AM PST = 9:00 AM MST (09:00). On today's live calendar that lands on Sun, May 24 in MST, which means the answer is a same day conversion rather than a static offset lookup.
10 AM PST = 10:00 AM MST (10:00). On today's live calendar that lands on Sun, May 24 in MST, which means the answer is a same day conversion rather than a static offset lookup.
11 AM PST = 11:00 AM MST (11:00). On today's live calendar that lands on Sun, May 24 in MST, which means the answer is a same day conversion rather than a static offset lookup.
12 PM PST = 12:00 PM MST (12:00). On today's live calendar that lands on Sun, May 24 in MST, which means the answer is a same day conversion rather than a static offset lookup.
1 PM PST = 1:00 PM MST (13:00). On today's live calendar that lands on Sun, May 24 in MST, which means the answer is a same day conversion rather than a static offset lookup.
2 PM PST = 2:00 PM MST (14:00). On today's live calendar that lands on Sun, May 24 in MST, which means the answer is a same day conversion rather than a static offset lookup.
3 PM PST = 3:00 PM MST (15:00). On today's live calendar that lands on Sun, May 24 in MST, which means the answer is a same day conversion rather than a static offset lookup.
4 PM PST = 4:00 PM MST (16:00). On today's live calendar that lands on Sun, May 24 in MST, which means the answer is a same day conversion rather than a static offset lookup.
5 PM PST = 5:00 PM MST (17:00). On today's live calendar that lands on Sun, May 24 in MST, which means the answer is a same day conversion rather than a static offset lookup.
6 PM PST = 6:00 PM MST (18:00). On today's live calendar that lands on Sun, May 24 in MST, which means the answer is a same day conversion rather than a static offset lookup.
9 PM PST = 9:00 PM MST (21:00). On today's live calendar that lands on Sun, May 24 in MST, which means the answer is a same day conversion rather than a static offset lookup.
The live gap is +0h right now, based on America/Los_Angeles at -07:00 and America/Phoenix at -07:00. America/Los_Angeles changes offset on November 1, 2026, so the gap moves to +1h after that transition.
The most usable workday block right now is about 8 hours: PST 9:00 AM previous day to 5:00 PM previous day, which lines up with MST 9:00 AM previous day to 5:00 PM previous day.
America/Los_Angeles
PDT · -07:00
America/Phoenix
MST · -07:00
These are the busiest live references selected from the abbreviation families on this page.
| PST | MST |
|---|---|
| 17:00 | 17:00 |
| 18:00 | 18:00 |
| 19:00 | 19:00 |
| 20:00 | 20:00 |
| 21:00 | 21:00 |
| 22:00 | 22:00 |
| 23:00 | 23:00 |
| 00:00 | 00:00 |
| 01:00 | 01:00 |
| 02:00 | 02:00 |
| 03:00 | 03:00 |
| 04:00 | 04:00 |
| 05:00 | 05:00 |
| 06:00 | 06:00 |
| 07:00 | 07:00 |
| 08:00 | 08:00 |
| 09:00 | 09:00 |
| 10:00 | 10:00 |
| 11:00 | 11:00 |
| 12:00 | 12:00 |
| 13:00 | 13:00 |
| 14:00 | 14:00 |
| 15:00 | 15:00 |
| 16:00 | 16:00 |
Countries represented here include United States, Mexico, and Canada.
Countries represented here include United States, Mexico, and Canada.
Once a conversion pair matters, people usually need a city page, compare page, or a broader browse surface next.
Interactive converter
Move from this static pair into the full timezone converter with more cities and abbreviations.
Compare city pairs
Use compare pages when the practical question is overlap, not just offset arithmetic.
World clock
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Browse city pages
Jump into the strongest city pages when you want location-specific timezone context.
