TimeToZone

Sydney Time to MST Converter

MST is 18 hours behind AEDT. 9:00 AM AEDT = 3:00 PM MST (previous day).

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Sydneyfrom
Sydney, Australia
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MST
Mountain Standard Time
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MST is 18 hours behind AEDT at the moment. To convert Sydney Time to MST, subtract 18 hours from the Sydney Time time: 9:00 AM AEDT = 3:00 PM MST (previous day).

Sydney Time (Sydney time) is used in Sydney, Australia. MST (Mountain Time) is used in Denver, Salt Lake City, Albuquerque, Calgary, Edmonton; Phoenix (Arizona) all year.

Most of Arizona uses MST all year and does not switch to MDT.

Sydney Time to MST time conversion table

Sydney Time to MST on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.

Sydney TimeMSTDay
12:00 AM AEDT6:00 AM MSTprevious day
1:00 AM AEDT7:00 AM MSTprevious day
2:00 AM AEDT8:00 AM MSTprevious day
3:00 AM AEDT9:00 AM MSTprevious day
4:00 AM AEDT10:00 AM MSTprevious day
5:00 AM AEDT11:00 AM MSTprevious day
6:00 AM AEDT12:00 PM MSTprevious day
7:00 AM AEDT1:00 PM MSTprevious day
8:00 AM AEDT2:00 PM MSTprevious day
9:00 AM AEDT3:00 PM MSTwork hours
10:00 AM AEDT4:00 PM MSTwork hours
11:00 AM AEDT5:00 PM MSTprevious day
12:00 PM AEDT6:00 PM MSTprevious day
1:00 PM AEDT7:00 PM MSTprevious day
2:00 PM AEDT8:00 PM MSTprevious day
3:00 PM AEDT9:00 PM MSTprevious day
4:00 PM AEDT10:00 PM MSTprevious day
5:00 PM AEDT11:00 PM MSTprevious day
6:00 PM AEDT12:00 AM MSTnight
7:00 PM AEDT1:00 AM MSTnight
8:00 PM AEDT2:00 AM MSTnight
9:00 PM AEDT3:00 AM MSTnight
10:00 PM AEDT4:00 AM MSTnight
11:00 PM AEDT5:00 AM MSTnight
  • Work rows — 9 AM–5 PM in both places
  • Night in the destination (10 PM–6 AM)

How to convert Sydney Time to MST

Subtract 18 hours from the Sydney Time time to get MST.

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 Sydney Time and MST

The time difference between Sydney Time and MST 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: MST is 18 hours behind of Sydney Time.
  • 8 Mar 2026 – 4 Apr 2026: MST is 17 hours behind of Sydney Time.
  • 5 Apr 2026 – 3 Oct 2026: MST is 16 hours behind of Sydney Time.
  • 4 Oct 2026 – 31 Oct 2026: MST is 17 hours behind of Sydney Time.
  • 1 Nov 2026 – 31 Dec 2026: MST is 18 hours behind of Sydney Time.

Sydney Time and MST during daylight saving time

  • Sydney 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).
  • 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).

Best time for a meeting between Sydney Time and MST

Sydney Time and MST 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.

Plan a meeting across more time zones.

Sydney Time to MST FAQ

What is the time difference between Sydney Time and MST?

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 Sydney Time in MST?

9:00 AM AEDT is 3:00 PM MST (previous day).

What is 12 PM (noon) Sydney Time in MST?

12:00 PM AEDT is 6:00 PM MST (previous day).

Is MST ahead of or behind Sydney Time?

MST is 18 hours behind AEDT, so it is earlier in MST than in Sydney Time.

Does Sydney Time change for daylight saving time?

Yes. Sydney Time next changes on 4 Apr 2027, when clocks go back one hour from AEDT to AEST.

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.

What is the best time for a meeting between Sydney Time and MST?

Sydney Time and MST 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.

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 MST to Sydney Time

Convert Sydney Time to other time zones

Convert other time zones to MST

Learn more

Updated 7 November 2026. Time zone data: IANA tz database.