Denver
Sydney
Convert MST to AEST
Mountain Standard Time to Australian Eastern Standard Time — Sydney is 16 hours ahead of Denver
Quick Facts
Time Difference
+16 hours
MST Full Name
Mountain Standard Time
AEST Full Name
Australian Eastern Standard Time
MST to AEST Conversion Table
Related Conversions
About MST and AEST Time Zones
MST (Mountain Standard Time) is UTC-7 and covers cities like Denver, Phoenix, Salt Lake City. AEST (Australian Eastern Standard Time) is UTC+10 and covers cities like Sydney, Melbourne, Brisbane.
When it's 12:00 PM (noon) in Denver (MST), it's 4:00 AM in Sydney (AEST). The time difference between MST and AEST is 16 hours — Sydney is ahead of Denver.
With a 17-hour gap, scheduling overlap is very limited. Early morning in Denver (6–8 AM) corresponds to evening or late night in Sydney.
Daylight Saving Time
MST observes Daylight Saving Time and becomes MDT (Mountain Daylight Time) during summer months, shifting clocks forward by 1 hour to UTC-6.
AEST observes Daylight Saving Time and becomes AEDT (Australian Eastern Daylight Time) during summer months, shifting clocks forward by 1 hour to UTC+11.
During DST transitions, the time difference between MST and AEST may shift by ±1 hour. Always verify the current offset above for the most accurate conversion.
Use our world clock tool to compare Denver and Sydney with a visual timeline, or browse more timezone conversions.
Frequently Asked Questions
What is the time difference between MST and AEST?
Sydney (AEST) is 16 hours ahead of Denver (MST). The offset is +16 hours.
Is AEST ahead or behind MST?
AEST is 16 hours ahead of MST. MST is UTC-6 and AEST is UTC+10.
When it's 12:00 PM in Denver, what time is it in Sydney?
When it's 12:00 PM (noon) in Denver (MST), it's 4:00 AM in Sydney (AEST).
When it's 5:00 PM in Denver, what time is it in Sydney?
When it's 5:00 PM in Denver (MST), it's 9:00 AM in Sydney (AEST).
Does MST change for Daylight Saving Time?
Yes. MST (Mountain Standard Time, UTC-7) becomes MDT (Mountain Daylight Time, UTC-6) in summer, shifting clocks forward 1 hour.
Does AEST change for Daylight Saving Time?
Yes. AEST (Australian Eastern Standard Time, UTC+10) becomes AEDT (Australian Eastern Daylight Time, UTC+11) in summer, shifting clocks forward 1 hour.