AEST to MST Time — Convert Australian Eastern Standard Time to Mountain Standard Time (US)

MST is currently 16 hours behind AEST.

On Clockjumper, AEST refers to Australian Eastern Standard Time, UTC+10 — the winter time in New South Wales, Victoria, Tasmania and the ACT. From the first Sunday in October to the first Sunday in April those states move to AEDT (UTC+11). Queensland stays on AEST all year and does not observe daylight saving.

MST is Mountain Standard Time (UTC−7). Most of the US Mountain zone switches to MDT (UTC−6) in summer, but Arizona (except the Navajo Nation) stays on MST year-round.

Around January MST is 18 hours behind AEST. Around July it is 16 hours behind AEST. That swing comes from one or both zones observing daylight saving on different schedules — the converter above always reflects the correct offset for the date you pick.

Is MST ahead of or behind AEST right now?

MST is currently 16 hours behind AEST.

What is the current AEST to MST time difference?

Right now the gap is 16 hours — MST is 16 hours behind AEST.

Does the AEST → MST offset change during the year?

Yes. Around January MST is 18 hours behind AEST; around July it is 16 hours behind AEST. The converter above always reflects the correct offset for the date you pick.

Does AEST observe daylight saving time?

AEST is itself the daylight-saving form. Australian Eastern Standard Time is in force at UTC+10 through the summer months; outside that window the same zone is on AEDT (UTC+11).

Does MST observe daylight saving time?

MST is itself the standard-time form. Mountain Standard Time (US) is in force at UTC-7 through the winter months; outside that window the same zone is on MDT (UTC-6).

What time is 3 AM AEST in MST?

3:00 AM AEST is 11:00 AM (previous day) MST.

What time is 8 AM AEST in MST?

8:00 AM AEST is 4:00 PM (previous day) MST.

What time is 9 AM AEST in MST?

9:00 AM AEST is 5:00 PM (previous day) MST.

What time is 10 AM AEST in MST?

10:00 AM AEST is 6:00 PM (previous day) MST.

What time is 11 AM AEST in MST?

11:00 AM AEST is 7:00 PM (previous day) MST.

What time is 12 PM (noon) AEST in MST?

12:00 PM AEST is 8:00 PM (previous day) MST.

What time is 2 PM AEST in MST?

2:00 PM AEST is 10:00 PM (previous day) MST.

What time is 3 PM AEST in MST?

3:00 PM AEST is 11:00 PM (previous day) MST.

What time is 4 PM AEST in MST?

4:00 PM AEST is 12:00 AM MST.

What time is 5 PM AEST in MST?

5:00 PM AEST is 1:00 AM MST.

What time is 9 PM AEST in MST?

9:00 PM AEST is 5:00 AM MST.

What time is 10 PM AEST in MST?

10:00 PM AEST is 6:00 AM MST.

When is the best time to schedule a call between AEST and MST?

AEST and MST have no direct 09:00–17:00 overlap on the same calendar day. Consider early-morning or late-evening slots on one side, or an asynchronous handoff.

What time zone does AEST refer to?

AEST refers to Australian Eastern Standard Time (IANA: Australia/Sydney).

What time zone does MST refer to?

MST refers to Mountain Standard Time (US) (IANA: America/Denver).

Is AEST on this page the same as other zones that share the letters "AEST"?

On Clockjumper, AEST refers to Australian Eastern Standard Time, UTC+10 — the winter time in New South Wales, Victoria, Tasmania and the ACT. From the first Sunday in October to the first Sunday in April those states move to AEDT (UTC+11). Queensland stays on AEST all year and does not observe daylight saving.

Is MST on this page the same as other zones that share the letters "MST"?

MST is Mountain Standard Time (UTC−7). Most of the US Mountain zone switches to MDT (UTC−6) in summer, but Arizona (except the Navajo Nation) stays on MST year-round.

• MST to AEST
• AEDT to AEST
• BST to MST
• AEST to AEDT
• CDT to MST
• AEST to CDT
• CET to MST
• AEST to CET
• CST to MST
• AEST to CST
• EDT to MST
• AEST to EDT
• EST to MST
• AEST to EST
• GMT to MST

• About AEST (Australian Eastern Standard Time) →
• About MST (Mountain Standard Time (US)) →
• All timezone conversion pages →
• Research: how daylight saving shifts workday overlap →