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