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Convert Mountain Standard Time to Australian Eastern Standard Time

Instantly convert Mountain Standard Time (MST) to Australian Eastern Standard Time (AEST) with our free online calculator.

Reviewed by Christopher FloiedUpdated

Mountain Standard Time

10:20:54 PM

Tue, Jun 23 (MST)

Australian Eastern Standard Time

03:20:54 PM

Wed, Jun 24 (AEST)

AEST is +17 hours from MST

Convert a Specific Time

MST

24-Hour Comparison

MSTAEST
12:00 AM5:00 PM
1:00 AM6:00 PM
2:00 AM7:00 PM
3:00 AM8:00 PM
4:00 AM9:00 PM
5:00 AM10:00 PM
6:00 AM11:00 PM
7:00 AM12:00 AM(+1d)
8:00 AM1:00 AM(+1d)
9:00 AM2:00 AM(+1d)
10:00 AM3:00 AM(+1d)
11:00 AM4:00 AM(+1d)
12:00 PM5:00 AM(+1d)
1:00 PM6:00 AM(+1d)
2:00 PM7:00 AM(+1d)
3:00 PM8:00 AM(+1d)
4:00 PM9:00 AM(+1d)
5:00 PM10:00 AM(+1d)
6:00 PM11:00 AM(+1d)
7:00 PM12:00 PM(+1d)
8:00 PM1:00 PM(+1d)
9:00 PM2:00 PM(+1d)
10:00 PM3:00 PM(+1d)
11:00 PM4:00 PM(+1d)

How to Convert Mountain Standard Time to Australian Eastern Standard Time

Formula

To convert Mountain Standard Time (MST) to Australian Eastern Standard Time (AEST): Convert MST to AEST

About Mountain Standard Time (MST)

Mountain Standard Time (MST, IANA: America/Denver and America/Phoenix) is the time zone for the US Mountain region and most of Canada's Rocky Mountain provinces, set at UTC-7:00. MST is observed from the first Sunday in November to the second Sunday in March; the region switches to Mountain Daylight Time (MDT = UTC-6:00) for the remainder of the year — EXCEPT for the State of Arizona (excluding Navajo Nation), which stays on MST year-round per Arizona Revised Statutes §1-242. Major MST cities: Denver, Phoenix, Salt Lake City, Albuquerque, El Paso, Tucson, Calgary, Edmonton. MST covers Colorado, Utah, Wyoming, Montana, Idaho (most), New Mexico, Arizona, parts of Texas + Mexico (Sonora). Population ~17 million in the time zone. Affects: NORAD Cheyenne Mountain operations, Denver Mile-High Stadium NFL game scheduling, Colorado ski-resort lift-operating hours, US Bureau of Land Management permit operations, and the Mormon Tabernacle Choir broadcast schedule from Salt Lake City.

About Australian Eastern Standard Time (AEST)

Australian Eastern Standard Time (AEST, IANA: Australia/Sydney) is the civil time of Australia's most populous eastern states — New South Wales (NSW), Victoria (VIC), Queensland (QLD), Tasmania (TAS), Australian Capital Territory (ACT) — set at UTC+10:00. AEST is observed in winter; NSW + VIC + TAS + ACT switch to Australian Eastern Daylight Time (AEDT = UTC+11) from the first Sunday of October to the first Sunday of April. Queensland does NOT observe DST (stays on AEST year-round) — a state-level decision affirmed by referendums in 1992. AEST serves approximately 21 million Australians — about 80% of the country's population. AEST is identical in offset to Vladivostok Time (Russia), Papua New Guinea Time (PGT), Guam-Chamorro Time (CHST), and the US-territory Northern Mariana Islands. Major AEST cities: Sydney NSW (5.4M metro — largest Australian city + ASX home), Melbourne VIC (5.1M metro — 2nd-largest), Brisbane QLD (2.6M metro — 3rd-largest, on AEST year-round), Gold Coast QLD (725K — tourist coastline), Newcastle NSW (475K), Canberra ACT (450K — federal capital), Hobart TAS (250K — Tasmanian capital). Affects: ASX trading hours 10:00-16:00 AEST, Australian Cricket / AFL game scheduling, Great Barrier Reef + Sydney Opera House tourism operating hours.

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