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Timezone converter
MST to AEST currently uses Mountain Time in America/Phoenix and Australian Eastern Time in Australia/Sydney as the live reference pair, with a +17h live gap. MST to AEST matters whenever Phoenix and Sydney need to coordinate across a +17h gap. The MST side covers United States and Mexico, while AEST covers Australia — 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
Mountain Time
America/Phoenix · MST -07:00
Major markets in this grouping include Phoenix, Ciudad Juárez, Calgary, Edmonton.
To
Australian Eastern Time
Australia/Sydney · GMT+10 +10:00
Major markets in this grouping include Sydney, Brisbane, Gold Coast, Newcastle.
Current gap
+17h
MST -07:00 vs AEST +10:00
9-to-5 overlap
1h
MST 4:00 PM previous day to 5:00 PM previous day
Representative countries
United States, Mexico, and Canada / Australia
Based on the busiest city and zone usage found in the current dataset.
MST (Phoenix, -07:00) to AEST (Sydney, +10:00) is currently a +17h conversion. Live coverage on the MST side is anchored by Phoenix, Ciudad Juárez, Calgary, and Edmonton; the AEST side draws from Sydney, Brisbane, Gold Coast, and Newcastle.
MST to AEST matters whenever Phoenix and Sydney need to coordinate across a +17h gap. The MST side covers United States and Mexico, while AEST covers Australia — that country mix is the practical reason this conversion shows up in calendars rather than the abstract offset math.
The pair spans roughly half the globe with a +17h gap, so the overlap window is narrow and most coordination happens through scheduled handoffs rather than live meetings.
AEST follows seasonal clock changes through Australia/Sydney, while MST stays on a fixed offset year-round. The result is a gap that quietly shifts by an hour twice a year — short by an hour in winter (or summer, depending on hemisphere) and back to normal afterwards.
MST and AEST sit exactly 17h apart, leaving roughly 1h of usable 9-to-5 overlap. That window is tight enough that recurring meetings tend to pile onto the same hour, which is why teams with this pair often consolidate cross-region work into a single anchor meeting per day.
Reference zone, current offsets, country and city anchors, overlap math, and date-shift answers for MST to AEST.
Reference pair
America/Phoenix -> Australia/Sydney
Live offsets
MST -07:00 vs AEST +10:00
Meaning split
Mountain Time / Australian Eastern Time
Country anchors
United States, Mexico, and Canada -> Australia
City anchors
Phoenix, Ciudad Juárez, Calgary, Edmonton -> Sydney, Brisbane, Gold Coast, Newcastle
Workday overlap
1h window: MST 4:00 PM previous day-5:00 PM previous day
Morning answer
9 AM MST = 2:00 AM AEST, next day
Evening answer
6 PM MST = 11:00 AM AEST, next 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.
MST to AEST is pinned to America/Phoenix -> Australia/Sydney, with the shorthand labels shown as context. The city anchors are Phoenix, Ciudad Juárez, Calgary, Edmonton on the MST side and Sydney, Brisbane, Gold Coast, Newcastle on the AEST side, with +17h between the live reference zones.
The 12 popular-hour answers include 0 same-day conversions, 12 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 GMT-7 (From side), PDT (From side), PST (From side), YT (From side), AEDT (To side). They may match mathematically, but their country calendars, city anchors, and common search intent differ from this exact pair.
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 | AEST: Australia (AU); 137 mapped cities; capital Canberra; English; AUD Australian dollar
Offset behavior, DST gap changes, local calendar evidence, and the day-shift pattern across the most common conversion hours.
MST/AEST is a long-haul handoff gap: America/Phoenix currently reads -07:00, Australia/Sydney reads +10:00, and the live delta is +17h. This class decides whether the page behaves like a same-day planner or a handoff planner.
Australia/Sydney changes from +10:00 (GMT+10) to +11:00 (GMT+11) on October 4, 2026 at about 3:00 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 0 same-day answers, 12 next-day answers, 0 previous-day answers. That mix is specific to the current America/Phoenix -> Australia/Sydney 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/Phoenix -> Australia/Sydney, country anchors, city anchors, calendar notes, and day-shift examples.
MST and AEST are not currently a same-offset pair; the live delta is +17h. Same-offset neighbors are still listed because users often confuse nearby abbreviations.
GMT-7 (From side, -07:00), PDT (From side, -07:00), PST (From side, -07:00), YT (From side, -07:00), AEDT (To side, +10:00) The page keeps these labels visible so SGT/HKT/GST-style clusters do not blur into one generic offset page.
MST/AEST uses 0 same-day answers, 12 next-day answers, 0 previous-day answers; 1h strict workday overlap; source zones America/Phoenix and Australia/Sydney; country anchors United States, Mexico, and Canada -> Australia.
Common places, calendars, markets, languages, and operating contexts behindMST and AEST.
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.
AEST
AEST is Australian Eastern Standard Time, commonly used for Brisbane, parts of Queensland, and eastern-Australia winter schedules. It is not interchangeable with AEDT because Queensland does not follow the same daylight-saving behavior as Sydney or Melbourne.
AEST
AEST planning often means Australian business handoffs, mining and energy operations in Queensland, Brisbane flight timing, and cross-state scheduling where one Australian city may switch clocks while another does not.
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.
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)
MST
34 mapped city anchors; zones America/Edmonton.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)
AEST
137 mapped city anchors; zones Australia/Brisbane, Australia/Sydney.capital Canberra; English; AUD Australian dollar
Holiday snapshot: New Year's Day (Jan 1, Public) · Australia Day (Jan 26, Public) · Labour Day (Mar 2, Public) · Canberra Day (Mar 9, Public) · Adelaide Cup Day (Mar 9, Public)
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.
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.
AEST and AEDT match on offset right now, but the page should not collapse them: they carry different city anchors, country calendars, currencies, holidays, and user intent.
AEST and ACDT are close enough to be confused in search, but they are not the same clock label and should be pinned to exact IANA zones.
AEST and ACST are close enough to be confused in search, but they are not the same clock label and should be pinned to exact IANA zones.
AEST and ACWST are close enough to be confused in search, but they are not the same clock label and should be pinned to exact IANA zones.
AEST and AWST are close enough to be confused in search, but they are not the same clock label and should be pinned to exact IANA zones.
AEST and WIT 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 theMST to AEST page grounded in those concrete places.
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.
AEST: Australia (AU); 137 mapped cities; zones Australia/Brisbane, Australia/Sydney; city anchors Sydney (Australia/Sydney, pop 5,557,233), Brisbane (Australia/Brisbane, pop 2,780,063), Gold Coast (Australia/Brisbane, pop 640,778), Newcastle (Australia/Sydney, pop 508,437); official Commonwealth of Australia; capital Canberra; region Oceania; subregion Australia and New Zealand; population 27,536,874; area 7,692,024 km2; languages English; currency AUD Australian 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 MST and AEST.
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.
AEST (aest) is not marked ambiguous in the abbreviation catalog. Meaning records: Australian Eastern Time at UTC+10:00; listed zones Australia/Brisbane; Australia/Sydney; source label Australian Eastern Time - Brisbane, Gold Coast, Sunshine Coast, Logan City.
AEST currently maps to 1 country footprint in the converter dataset: Australia (AU). The footprint spans 2 IANA zones across 10 city anchors.
AEST city anchors in this indexed page family: Sydney [sydney-AU, AU, Australia/Sydney, pop 5,557,233]; Brisbane [brisbane-AU, AU, Australia/Brisbane, pop 2,780,063]; Gold Coast [gold-coast-AU, AU, Australia/Brisbane, pop 640,778]; Newcastle [newcastle-AU, AU, Australia/Sydney, pop 508,437]; Canberra [canberra-AU, AU, Australia/Sydney, pop 367,752]; Central Coast [central-coast-AU, AU, Australia/Sydney, pop 346,596]; Sunshine Coast [sunshine-coast-AU, AU, Australia/Brisbane, pop 346,522]; Logan City [logan-city-AU, AU, Australia/Brisbane, pop 345,098]; Wollongong [wollongong-AU, AU, Australia/Sydney, pop 280,153]; Townsville [townsville-AU, AU, Australia/Brisbane, pop 201,313].
AEST: Australia (AU); 137 mapped cities; zones Australia/Brisbane, Australia/Sydney; city anchors Sydney (Australia/Sydney, pop 5,557,233), Brisbane (Australia/Brisbane, pop 2,780,063), Gold Coast (Australia/Brisbane, pop 640,778), Newcastle (Australia/Sydney, pop 508,437); official Commonwealth of Australia; capital Canberra; region Oceania; subregion Australia and New Zealand; population 27,536,874; area 7,692,024 km2; languages English; currency AUD Australian dollar.
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.
AEST is used in this dataset for Australian Eastern Time. Right now it maps to 1 meaning, 2 IANA zones, and 1 country. The busiest cities using AEST in the current catalog are Sydney, Brisbane, Gold Coast, Newcastle, and Canberra. The lead live reference on this page is Sydney (Australia/Sydney), currently at +10:00 (GMT+10). Those cities are what give AEST its actual feel rather than the abstract offset. AEST currently shows +10:00, but Australia/Sydney observes seasonal clock changes — the next transition is around October 4, 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.
AEST is not heavily split in the current catalog, but the short label still hides the underlying IANA zone and any future policy change. The safe pattern is to write the abbreviation for humans and the zone for machines. Australia/Sydney has an upcoming offset change on October 4, 2026. After that point, AEST 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 AEST is the exact IANA zone used by your city or system. Australia/Sydney sits at +10:00, ahead of UTC, which means daily logs in this zone reach a new calendar date before UTC does — a small detail that breaks date-based reporting if missed.
AEST should not be blindly swapped with nearby labels. Adjacent references in the catalog: AEDT (+10:00, Shares the australian and eastern time family); ACDT (+09:30, Shares the australian time family); ACST (+09:30, Shares the australian time family); ACWST (+08:45, Shares the australian time family); AWST (+08:00, Shares the australian time family); WIT (+09:00, Shares the eastern time family).
AEST has 1 meaning record, offset range UTC+10:00 to UTC+11:00, labels Australian Eastern Time, and 1 country footprint across 2 IANA zones.
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.
AEST country anchor Australia: Australia, officially the Commonwealth of Australia, is a country comprising the mainland of the Australian continent, the island of Tasmania and numerous smaller islands. It has a land area of 7,688,287 km2 (2,968,464 sq mi), making it the sixth-largest country in the world. Australia is the world's flattest and driest inhabited continent. It is a megadiverse country, and its size gives it a wide variety of landscapes and climates including deserts in the interior and tropical rainforests along the coast. 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.
AEST is Australian Eastern Standard Time, commonly used for Brisbane, parts of Queensland, and eastern-Australia winter schedules. It is not interchangeable with AEDT because Queensland does not follow the same daylight-saving behavior as Sydney or Melbourne.
AEST planning often means Australian business handoffs, mining and energy operations in Queensland, Brisbane flight timing, and cross-state scheduling where one Australian city may switch clocks while another does not.
MST/AEST uses America/Phoenix -> Australia/Sydney, offset delta +17h, overlap 1h, route /convert/mst/aest/, and live abbreviation readings MST/GMT+10.
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.
MST coverage on this page is led by Phoenix, United States, Ciudad Juárez, Mexico, Calgary, Canada, and Edmonton, Canada, with 2 more in the live dataset. That mix is what makes MST feel anchored to West Coast and Pacific-edge American activity in practice rather than just an abbreviation on a chart.
AEST coverage is led by Sydney, Australia, Brisbane, Australia, Gold Coast, Australia, and Newcastle, Australia, with 2 more anchoring the wider label family. Combined with the MST side, this conversion ends up describing trans-Pacific outsourcing handoffs, gaming and entertainment release windows, and follow-the-sun engineering rotations.
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.
| MST | AEST | Day relation |
|---|---|---|
| 9:00 AM | 2:00 AMMon, May 25 | next day |
| 12:00 PM | 5:00 AMMon, May 25 | next day |
| 3:00 PM | 8:00 AMMon, May 25 | next day |
| 6:00 PM | 11:00 AMMon, May 25 | next day |
| 9:00 PM | 2:00 PMMon, May 25 | next day |
Quick conversions for 9 AM, noon, 3 PM, 6 PM, and 9 PM based on today's local calendar.
| AEST | MST | Day relation |
|---|---|---|
| 9:00 AM | 4:00 PMSun, May 24 | previous day |
| 12:00 PM | 7:00 PMSun, May 24 | previous day |
| 3:00 PM | 10:00 PMSun, May 24 | previous day |
| 6:00 PM | 1:00 AMMon, May 25 | same day |
| 9:00 PM | 4:00 AMMon, May 25 | same day |
MST to AEST ranges from MST 9:00 AM (which lands at AEST 2:00 AM) through MST 9:00 PM (AEST 2:00 PM). Most of those slots fall on a different calendar day on the AEST side, which is why this direction always needs explicit dates in invites and ticket comments — the time alone is not enough.
AEST to MST ranges from AEST 9:00 AM (which lands at MST 4:00 PM) through AEST 9:00 PM (MST 4:00 AM). Most of those slots fall on a different calendar day on the MST side, which is why this direction always needs explicit dates in invites and ticket comments — the time alone is not enough.
These direct answers are here for the exact-intent searches people actually use, like “10 AM MST to AEST” or “4 PM MST in AEST”.
8 AM MST = 1:00 AM AEST (01:00). On today's live calendar that lands on Mon, May 25 in AEST, which means the answer is a next day conversion rather than a static offset lookup.
9 AM MST = 2:00 AM AEST (02:00). On today's live calendar that lands on Mon, May 25 in AEST, which means the answer is a next day conversion rather than a static offset lookup.
10 AM MST = 3:00 AM AEST (03:00). On today's live calendar that lands on Mon, May 25 in AEST, which means the answer is a next day conversion rather than a static offset lookup.
11 AM MST = 4:00 AM AEST (04:00). On today's live calendar that lands on Mon, May 25 in AEST, which means the answer is a next day conversion rather than a static offset lookup.
12 PM MST = 5:00 AM AEST (05:00). On today's live calendar that lands on Mon, May 25 in AEST, which means the answer is a next day conversion rather than a static offset lookup.
1 PM MST = 6:00 AM AEST (06:00). On today's live calendar that lands on Mon, May 25 in AEST, which means the answer is a next day conversion rather than a static offset lookup.
2 PM MST = 7:00 AM AEST (07:00). On today's live calendar that lands on Mon, May 25 in AEST, which means the answer is a next day conversion rather than a static offset lookup.
3 PM MST = 8:00 AM AEST (08:00). On today's live calendar that lands on Mon, May 25 in AEST, which means the answer is a next day conversion rather than a static offset lookup.
4 PM MST = 9:00 AM AEST (09:00). On today's live calendar that lands on Mon, May 25 in AEST, which means the answer is a next day conversion rather than a static offset lookup.
5 PM MST = 10:00 AM AEST (10:00). On today's live calendar that lands on Mon, May 25 in AEST, which means the answer is a next day conversion rather than a static offset lookup.
6 PM MST = 11:00 AM AEST (11:00). On today's live calendar that lands on Mon, May 25 in AEST, which means the answer is a next day conversion rather than a static offset lookup.
9 PM MST = 2:00 PM AEST (14:00). On today's live calendar that lands on Mon, May 25 in AEST, which means the answer is a next day conversion rather than a static offset lookup.
The live gap is +17h right now, based on America/Phoenix at -07:00 and Australia/Sydney at +10:00. Australia/Sydney changes offset on October 4, 2026, so the gap moves to +18h after that transition.
The most usable workday block right now is about 1 hours: MST 4:00 PM previous day to 5:00 PM previous day, which lines up with AEST 9:00 AM to 10:00 AM.
America/Phoenix
MST · -07:00
Australia/Sydney
GMT+10 · +10:00
These are the busiest live references selected from the abbreviation families on this page.
| MST | AEST |
|---|---|
| 17:00 | 10:00 |
| 18:00 | 11:00 |
| 19:00 | 12:00 |
| 20:00 | 13:00 |
| 21:00 | 14:00 |
| 22:00 | 15:00 |
| 23:00 | 16:00 |
| 00:00 | 17:00 |
| 01:00 | 18:00 |
| 02:00 | 19:00 |
| 03:00 | 20:00 |
| 04:00 | 21:00 |
| 05:00 | 22:00 |
| 06:00 | 23:00 |
| 07:00 | 00:00 |
| 08:00 | 01:00 |
| 09:00 | 02:00 |
| 10:00 | 03:00 |
| 11:00 | 04:00 |
| 12:00 | 05:00 |
| 13:00 | 06:00 |
| 14:00 | 07:00 |
| 15:00 | 08:00 |
| 16:00 | 09:00 |
Countries represented here include United States, Mexico, and Canada.
Countries represented here include Australia.
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