MST to Australia Time Converter
AEDT is 18 hours ahead of MST. 9:00 AM MST = 3:00 AM AEDT (next day).
AEDT is 18 hours ahead of MST at the moment. To convert MST to Australia Time, add 18 hours to the MST time: 9:00 AM MST = 3:00 AM AEDT (next day).
MST (Mountain Time) is used in Denver, Salt Lake City, Albuquerque, Calgary, Edmonton; Phoenix (Arizona) all year. Australia Time (Australia time) is used in Australia.
Most of Arizona uses MST all year and does not switch to MDT.
MST to Australia Time time conversion table
MST to Australia Time on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| MST | Australia Time |
|---|---|
| 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 AM+1 |
| 7:00 AM | 1:00 AM+1 |
| MST | Australia Time |
|---|---|
| 8:00 AM | 2:00 AM+1 |
| 9:00 AM | 3:00 AM+1 |
| 10:00 AM | 4:00 AM+1 |
| 11:00 AM | 5:00 AM+1 |
| 12:00 PM | 6:00 AM+1 |
| 1:00 PM | 7:00 AM+1 |
| 2:00 PM | 8:00 AM+1 |
| 3:00 PM | 9:00 AM+1 |
| MST | Australia Time |
|---|---|
| 4:00 PM | 10:00 AM+1 |
| 5:00 PM | 11:00 AM+1 |
| 6:00 PM | 12:00 PM+1 |
| 7:00 PM | 1:00 PM+1 |
| 8:00 PM | 2:00 PM+1 |
| 9:00 PM | 3:00 PM+1 |
| 10:00 PM | 4:00 PM+1 |
| 11:00 PM | 5:00 PM+1 |
Conversion table from MST to Australia Time for 7 Nov 2026. A tick marks hours that fall between 9 AM and 5 PM in both places. +1 means the next day in Australia Time, −1 the previous day.
- ✓ marks 9 AM–5 PM in both places
- Greyed times are night in the destination (10 PM–6 AM)
How to convert MST to Australia Time
Add 18 hours to the MST time to get Australia Time.
Example: 9:00 AM MST = 3:00 AM AEDT (next day).
Across midnight: 10:00 PM MST = 4:00 PM AEDT (next day). The date changes, so always check the day as well as the hour.
Time difference between MST and Australia Time
The time difference between MST and Australia Time is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:
- 31 Dec 2025 – 7 Mar 2026: Australia Time is 18 hours ahead of MST.
- 8 Mar 2026 – 3 Apr 2026: Australia Time is 17 hours ahead of MST.
- 4 Apr 2026 – 2 Oct 2026: Australia Time is 16 hours ahead of MST.
- 3 Oct 2026 – 31 Oct 2026: Australia Time is 17 hours ahead of MST.
- 1 Nov 2026 – 30 Dec 2026: Australia Time is 18 hours ahead of MST.
MST and Australia Time during daylight saving time
- MST next changes on 14 Mar 2027: clocks go forward one hour at 01:59 local time, from MST (UTC−7) to MDT (UTC−6).
- Australia Time next changes on 4 Apr 2027: clocks go back one hour at 02:59 local time, from AEDT (UTC+11) to AEST (UTC+10).
Best time for a meeting between MST and Australia Time
MST and Australia Time have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 1:00 PM MST, which is 7:00 AM AEDT.
MST to Australia Time FAQ
What is the time difference between MST and Australia Time?
Right now AEDT is 18 hours ahead of MST. The gap changes 5 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM MST in Australia Time?
9:00 AM MST is 3:00 AM AEDT (next day).
What is 12 PM (noon) MST in Australia Time?
12:00 PM MST is 6:00 AM AEDT (next day).
Is Australia Time ahead of or behind MST?
AEDT is 18 hours ahead of MST, so it is later in Australia Time than in MST.
Does MST change for daylight saving time?
Yes. MST next changes on 14 Mar 2027, when clocks go forward one hour from MST to MDT.
Does Australia Time change for daylight saving time?
Yes. Australia Time next changes on 4 Apr 2027, when clocks go back one hour from AEDT to AEST.
What is the best time for a meeting between MST and Australia Time?
MST and Australia Time have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 1:00 PM MST, which is 7:00 AM AEDT.
Is MT the same as MST?
MST is the winter (standard) name of Mountain Time (MT). From March to November the same clocks are called MDT. This converter always uses the one in force on the date you choose.
Related conversions
Convert Australia Time to MST
Convert MST to other time zones
Convert other time zones to Australia Time
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.