MST to AEST Time Converter - Live World Clock
Convert time between Mountain Standard Time (MST) and Australian Eastern Standard Time (AEST). See current time with live clocks.
United States (MST)
Australia (AEST)
Current Time Difference
MST is -17 hours behind AEST
(-17 hours during Daylight Saving Time)
What is MST (Mountain Standard Time)?
Mountain Standard Time (MST) used in western North America, UTC-7:00.
Countries and Regions Using MST
Primary Country:
- United States
- States: Colorado, Arizona, Utah, New Mexico
Also Used By:
- Canada - Alberta
- Mexico
Key Facts about MST:
- ✓ Arizona doesn't observe DST
- ✓ Major mountain resort areas
- ✓ Growing tech hub in Denver
- ✓ Major Cities: Denver, Phoenix, Albuquerque, Salt Lake City
- ✓ UTC Offset: -7:00 (-6:00 during MDT)
What is AEST (Australian Eastern Standard Time)?
Australian Eastern Standard Time (AEST) used in eastern Australia, UTC+10:00.
Countries and Regions Using AEST
Primary Country:
- Australia
Key Facts about AEST:
- ✓ Most populous Australian timezone
- ✓ Major business centers
- ✓ DST observed October-April
- ✓ Major Cities: Sydney, Melbourne, Brisbane, Canberra
- ✓ UTC Offset: +10:00 (+11:00 during AEDT)
MST to AEST Time Difference
Standard Time Difference:
MST is -17 hours behind
During Daylight Saving Time:
MST is -17 hours behind
Common Use Cases:
- • Business meetings between United States and Australia
- • International collaboration across timezones
- • Scheduling calls and conferences
Frequently Asked Questions
Which countries are in MST time zone?
United States is the primary country using MST (-7:00). Other countries include: Canada, Mexico.
Which countries are in AEST time zone?
Australia is the primary country using AEST (+10:00).
How many hours is MST ahead of AEST?
MST is -17 hours behind AEST. During Daylight Saving Time, the difference is -17 hours.
Does United States observe Daylight Saving Time?
Yes, United States observes Daylight Saving Time. During DST, MST changes to MDT (Mountain Daylight Time) with UTC offset of -6:00.