What is the time difference between MST and AEST?

MST is 17 hours ahead AEST. MST is UTC-7 and AEST is UTC+10.

What is 9 AM MST in AEST?

9 AM MST is 2 AM AEST (next day).

What is 12 PM MST in AEST?

12 PM MST (noon) is 5 AM AEST (next day).

MST to AEST Time Converter

Q: What are the best meeting times between MST and AEST?

There is no standard business hours overlap between MST and AEST.

Mountain Standard Time → Australian Eastern Standard Time

MST

UTC-7

Mountain Standard Time

offset

+17h

AEST is 17h ahead

AEST

UTC+10

Australian Eastern Standard Time

Both MST and AEST observe DST — offset may shift ±1h during transitions

Mountain Standard Time (MST) is 17 hours ahead Australian Eastern Standard Time (AEST). When it is noon in MST, it is 5 AM in AEST. This offset may change during Daylight Saving Time transitions.

Meeting planner tool Reverse: AEST to MST

Cities in MST

🇺🇸Phoenix 🇺🇸Denver 🇨🇦Calgary

Cities in AEST

🇦🇺Sydney 🇦🇺Melbourne 🇦🇺Brisbane

All 24 Hours — MST to AEST

Click any row to see the full detail page. Current hour in MST is highlighted.

Both business hoursPartial overlap

12 AM6 AM12 PM6 PM11 PM

Best Meeting Times — MST & AEST

No standard business-hours overlap between MST and AEST. Consider early morning or evening calls.

Challenging overlap

MST and AEST are 17 hours apart with no shared business-hours window. Try scheduling at 8 AM in the earlier timezone or 6 PM in the later one.

8 AM→1 AM+1d 9 AM→2 AM+1d 10 AM→3 AM+1d 11 AM→4 AM+1d 12 PM→5 AM+1d 1 PM→6 AM+1d 2 PM→7 AM+1d 3 PM→8 AM+1d 4 PM→9 AM+1d 5 PM→10 AM+1d

Related Time Zone Conversions

Frequently Asked Questions — MST to AEST

Mountain Standard Time (MST) is 17 hours ahead of Australian Eastern Standard Time (AEST). MST is UTC-7 and AEST is UTC+10. This offset may shift by ±1 hour during Daylight Saving Time transitions.