ACST to MST Converter
Australian Central Time
4:55:00 PM ACST
Thursday, May 14, 2026
15h 30m
15h 30m
Mountain Time
1:25:00 AM MDT
Thursday, May 14, 2026
Mountain Time (MST / MDT) is 15.5 hours behind Australian Central Time (ACST / ACDT).
Quick Reference
- Australian Central Time
- ACST (GMT+9:30)
ACDT starts on Oct 3, 2026
- Mountain Time
- MDT (GMT-6)
MST starts on Nov 1, 2026
Cities in ACST
Cities in MST
Frequently Asked Questions
- What is the difference between ACST and MST?
- MST is 15.5 hours behind ACST.
- How do I convert ACST to MST?
- To convert from ACST to MST, subtract 15.5 hours. Use the interactive converter on this page to convert specific times.
- What cities are in ACST and MST?
- Cities in ACST include Adelaide, Mount Gambier. Cities in MST include Denver, Salt Lake City, Albuquerque, El Paso, Santa Fe.