AEST to Denver Time Converter
MST is 18 hours behind AEDT. 9:00 AM AEDT = 3:00 PM MST (previous day).
MST is 18 hours behind AEDT at the moment. To convert AEST to Denver Time, subtract 18 hours from the AEST time: 9:00 AM AEDT = 3:00 PM MST (previous day).
AEST (Australian Eastern Time) is used in New South Wales, Victoria, Tasmania, ACT; Queensland (Brisbane) all year. Denver Time (Denver time) is used in Denver, USA.
Queensland stays on AEST all year. AEST (Australian Eastern Standard Time) is not in force right now: New South Wales is currently on AEDT. This page uses whichever name applies on the date you pick, so the numbers below say AEDT.
AEST to Denver Time time conversion table
AEST to Denver Time on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| AEST | Denver Time | Day |
|---|---|---|
| 12:00 AM AEDT | 6:00 AM MST | previous day |
| 1:00 AM AEDT | 7:00 AM MST | previous day |
| 2:00 AM AEDT | 8:00 AM MST | previous day |
| 3:00 AM AEDT | 9:00 AM MST | previous day |
| 4:00 AM AEDT | 10:00 AM MST | previous day |
| 5:00 AM AEDT | 11:00 AM MST | previous day |
| 6:00 AM AEDT | 12:00 PM MST | previous day |
| 7:00 AM AEDT | 1:00 PM MST | previous day |
| 8:00 AM AEDT | 2:00 PM MST | previous day |
| 9:00 AM AEDT | 3:00 PM MST | work hours |
| 10:00 AM AEDT | 4:00 PM MST | work hours |
| 11:00 AM AEDT | 5:00 PM MST | previous day |
| 12:00 PM AEDT | 6:00 PM MST | previous day |
| 1:00 PM AEDT | 7:00 PM MST | previous day |
| 2:00 PM AEDT | 8:00 PM MST | previous day |
| 3:00 PM AEDT | 9:00 PM MST | previous day |
| 4:00 PM AEDT | 10:00 PM MST | previous day |
| 5:00 PM AEDT | 11:00 PM MST | previous day |
| 6:00 PM AEDT | 12:00 AM MST | night |
| 7:00 PM AEDT | 1:00 AM MST | night |
| 8:00 PM AEDT | 2:00 AM MST | night |
| 9:00 PM AEDT | 3:00 AM MST | night |
| 10:00 PM AEDT | 4:00 AM MST | night |
| 11:00 PM AEDT | 5:00 AM MST | night |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert AEST to Denver Time
Subtract 18 hours from the AEST time to get Denver Time.
Example: 9:00 AM AEDT = 3:00 PM MST (previous day).
Across midnight: 1:00 AM AEDT = 7:00 AM MST (previous day). The date changes, so always check the day as well as the hour.
Time difference between AEST and Denver Time
The time difference between AEST and Denver 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:
- 1 Jan 2026 – 7 Mar 2026: Denver Time is 18 hours behind of AEST.
- 8 Mar 2026 – 4 Apr 2026: Denver Time is 17 hours behind of AEST.
- 5 Apr 2026 – 3 Oct 2026: Denver Time is 16 hours behind of AEST.
- 4 Oct 2026 – 31 Oct 2026: Denver Time is 17 hours behind of AEST.
- 1 Nov 2026 – 31 Dec 2026: Denver Time is 18 hours behind of AEST.
AEST and Denver Time during daylight saving time
- AEST next changes on 4 Apr 2027: clocks go back one hour at 02:59 local time, from AEDT (UTC+11) to AEST (UTC+10).
- Denver Time next changes on 14 Mar 2027: clocks go forward one hour at 01:59 local time, from MST (UTC−7) to MDT (UTC−6).
Best time for a meeting between AEST and Denver Time
AEST and Denver Time have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM AEDT, which is 1:00 PM MST.
AEST to Denver Time FAQ
What is the time difference between AEST and Denver Time?
Right now MST is 18 hours behind AEDT. The gap changes 5 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM AEST in Denver Time?
9:00 AM AEDT is 3:00 PM MST (previous day).
What is 12 PM (noon) AEST in Denver Time?
12:00 PM AEDT is 6:00 PM MST (previous day).
Is Denver Time ahead of or behind AEST?
MST is 18 hours behind AEDT, so it is earlier in Denver Time than in AEST.
Does AEST change for daylight saving time?
Yes. AEST next changes on 4 Apr 2027, when clocks go back one hour from AEDT to AEST.
Does Denver Time change for daylight saving time?
Yes. Denver Time next changes on 14 Mar 2027, when clocks go forward one hour from MST to MDT.
What is the best time for a meeting between AEST and Denver Time?
AEST and Denver Time have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM AEDT, which is 1:00 PM MST.
Related conversions
Convert Denver Time to AEST
Convert AEST to other time zones
Convert other time zones to Denver Time
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.