AEST to MST Converter

Convert Australian Eastern Time (AEST) to Mountain Time (MST), with daylight saving time handled for you.

MST to AEST

Now in AEST

4:02 AM

Australian Eastern Time · Sydney

Now in MST

12:02 PM

Mountain Time · Denver

Results

4:02 AM AEST in MST

12:02 PM

Mountain Time · previous day · right now MST is 16 hours behind AEST

Times follow Sydney for AEST and Denver for MST, using the IANA time zone database.

AEST to MST time difference

MST is 16 hours behind AEST for most of 2026, and 18 hours behind AEST for about 127 days, and 17 hours behind AEST for about 56 days, because daylight saving time changes on different dates.

In 2026, Australian Eastern Time switches back to AEST on April 5 and to AEDT on October 4. In 2026, Mountain Time switches to MDT on March 8 and back to MST on November 1.

AEST to MST conversion table

Every hour on 2026-09-29. Highlighted rows fall inside 9 AM–5 PM in both zones.

AEST (Australian Eastern Time)MST (Mountain Time)
12:00 AM8:00 AM · previous day
1:00 AM9:00 AM · previous day
2:00 AM10:00 AM · previous day
3:00 AM11:00 AM · previous day
4:00 AM12:00 PM · previous day
5:00 AM1:00 PM · previous day
6:00 AM2:00 PM · previous day
7:00 AM3:00 PM · previous day
8:00 AM4:00 PM · previous day
9:00 AM5:00 PM · previous day
10:00 AM6:00 PM · previous day
11:00 AM7:00 PM · previous day
12:00 PM8:00 PM · previous day
1:00 PM9:00 PM · previous day
2:00 PM10:00 PM · previous day
3:00 PM11:00 PM · previous day
4:00 PM12:00 AM
5:00 PM1:00 AM
6:00 PM2:00 AM
7:00 PM3:00 AM
8:00 PM4:00 AM
9:00 PM5:00 AM
10:00 PM6:00 AM
11:00 PM7:00 AM

Working hours overlap

On 2026-09-29, 9 AM–5 PM workdays in AEST and MST don't overlap. Try an early start in one zone and a late finish in the other, or use the meeting planner.

Convert AEST to other time zones

How to use

Follow these steps to get a result

  1. Pick a date and a time in Australian Eastern Time (AEST).

  2. Read the matching MST time, including whether it falls on the next or previous day.

  3. Scan the 24-hour table to see every hour at once, with shared working hours highlighted.

Features

What this tool includes

  • Live clocks for both time zones

  • Daylight saving time handled automatically

  • 24-hour conversion table

  • Working-hours overlap

FAQ

Common questions about this tool

MST is 16 hours behind AEST for most of 2026, and 18 hours behind AEST for about 127 days, and 17 hours behind AEST for about 56 days, because daylight saving time changes on different dates.

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