AEST to MST Time Converter
MST is 18 hours behind AEST right now. 9:00 AM in AEST is 3:00 PM in MST (the day before).
Time now: AEST and MST
MST is 18 hours behind AEST right now. The gap is not fixed: it is 18 hours at some times of the year and 16 hours at others, because at least one of them changes its clocks for daylight saving time.
AEST to MST conversion table
Every hour of the day, using today's time difference.
| AEST | MST |
|---|---|
| 12:00 AM | 6:00 AMprevious day |
| 1:00 AM | 7:00 AMprevious day |
| 2:00 AM | 8:00 AMprevious day |
| 3:00 AM | 9:00 AMprevious day |
| 4:00 AM | 10:00 AMprevious day |
| 5:00 AM | 11:00 AMprevious day |
| 6:00 AM | 12:00 PMprevious day |
| 7:00 AM | 1:00 PMprevious day |
| 8:00 AM | 2:00 PMprevious day |
| 9:00 AM | 3:00 PMprevious day |
| 10:00 AM | 4:00 PMprevious day |
| 11:00 AM | 5:00 PMprevious day |
| 12:00 PM | 6:00 PMprevious day |
| 1:00 PM | 7:00 PMprevious day |
| 2:00 PM | 8:00 PMprevious day |
| 3:00 PM | 9:00 PMprevious day |
| 4:00 PM | 10:00 PMprevious day |
| 5:00 PM | 11:00 PMprevious day |
| 6:00 PM | 12:00 AM |
| 7:00 PM | 1:00 AM |
| 8:00 PM | 2:00 AM |
| 9:00 PM | 3:00 AM |
| 10:00 PM | 4:00 AM |
| 11:00 PM | 5:00 AM |
Best time to meet between AEST and MST
Working hours overlap (9 AM – 6 PM in both places):
- 9:00 AM – 12:00 PM AEST = 3:00 PM – 6:00 PM MST
The time difference changes during the year because of daylight saving time, so these windows shift by an hour at other times.
Does the time difference between AEST and MST change?
Yes. Right now MST is 18 hours behind AEST. These are the dates in the next 12 months when the gap changes:
- Sunday, 14 March 2027: MST moves its clocks forward. MST is 17 hours behind AEST from then (it was 18 hours before).
- Sunday, 4 April 2027: AEST moves its clocks back. MST is 16 hours behind AEST from then (it was 17 hours before).
- Sunday, 3 October 2027: AEST moves its clocks forward. MST is 17 hours behind AEST from then (it was 16 hours before).
- Sunday, 7 November 2027: MST moves its clocks back. MST is 18 hours behind AEST from then (it was 17 hours before).
Office hours in each other's time
- 9 AM to 6 PM in AEST is 3:00 PM (previous day) to 12:00 AM in MST.
- 9 AM to 6 PM in MST is 3:00 AM (next day) to 12:00 PM (next day) in AEST.
Based on today's clock settings.
Frequently asked questions
What is the time difference between AEST and MST?
MST is 18 hours behind AEST right now. The gap is not fixed: it is 18 hours at some times of the year and 16 hours at others, because at least one of them changes its clocks for daylight saving time.
How do I convert AEST to MST?
Subtract 18 hours from the AEST time to get the MST time (at today's difference). 9:00 AM in AEST is 3:00 PM in MST (the day before). Or use the converter above and pick any date and time.
What is the current time in MST?
It is 4:59 PM in MST on Monday, November 9 (the converter above shows it live). At the same moment it is 10:59 AM in AEST.
Does the time difference between AEST and MST change during the year?
Yes. Right now MST is 18 hours behind AEST. Over the next 12 months the gap changes 4 times: Sunday, 14 March 2027: MST moves its clocks forward. MST is 17 hours behind AEST from then (it was 18 hours before). Sunday, 4 April 2027: AEST moves its clocks back. MST is 16 hours behind AEST from then (it was 17 hours before). Sunday, 3 October 2027: AEST moves its clocks forward. MST is 17 hours behind AEST from then (it was 16 hours before). Sunday, 7 November 2027: MST moves its clocks back. MST is 18 hours behind AEST from then (it was 17 hours before).
What is the best time for a meeting between AEST and MST?
Between 9 AM and 6 PM in both places you can meet at 9:00 AM – 12:00 PM AEST = 3:00 PM – 6:00 PM MST. Check the overlap section on this page for every option.
What does AEST mean?
Sydney and Melbourne use AEST (UTC+10:00) in winter and AEDT (UTC+11:00) in summer. Brisbane stays on AEST all year.
What does MST mean?
Mountain Time is MST (UTC-07:00) in winter and MDT (UTC-06:00) in summer. Arizona stays on MST all year.