AEST to MST — Time Zone Converter
Australian Eastern Time (AEST, UTC+10) covers eastern Australia; Mountain Time (MST, UTC−7) covers the US Mountain states. In standard time, MST is 17 hours behind AEST. Standard working days in eastern Australia and the US Mountain states barely overlap, so most teams alternate who takes the early-morning or late-evening slot. Use the live converter below — it applies today's IANA time zone data, including daylight saving time, and gives you a meeting schedule you can paste straight into email or Slack.
AEST to MST, hour by hour (today)
Frequently asked questions
What is the time difference between AEST and MST?+
Australian Eastern Time (AEST) is UTC+10 and Mountain Time (MST) is UTC−7, so in standard time MST is 17 hours behind AEST. The gap shifts by an hour around daylight saving transitions, so always check a live converter near the change dates in spring and autumn.
Does AEST or MST observe daylight saving time?+
Australian Eastern Time observes daylight saving time (AEST in winter, AEDT in summer). Mountain Time observes daylight saving time (MST in winter, MDT in summer).
What is the best time for a meeting between AEST and MST?+
Standard working days in eastern Australia and the US Mountain states barely overlap, so most teams alternate who takes the early-morning or late-evening slot. The converter above highlights office hours in green for both zones, so you can slide to a time that works for everyone.
How do I share a AEST to MST meeting time by email?+
Pick a time in the converter, log it to the Smart Clipboard, and copy it as bullets, a formatted table, or a one-line question — with both AEST and MST times spelled out so nobody has to do the math.