Time in ACST and MDT
The time difference between Australian Central Standard Time (ACST) and Mountain Daylight Time (MDT) is 15 hours 30 minutes. Mountain Daylight Time is 15 hours 30 minutes behind Australian Central Standard Time.
This means 9am ACST is 5:30pm MDT (previous day) and 5pm ACST is 1:30am MDT.
Australian Central Standard Time
- The current local time in ACST is 10:40 pm (July 18, 2026)
- ACST time zone offset is UTC+09:30
Mountain Daylight Time
- The current local time in MDT is 7:10 pm (July 18, 2026)
- MDT time zone offset is UTC-06:00
How to convert Australian Central Standard Time to Mountain Daylight Time?
Subtract 15 hours 30 minutes from Australian Central Standard Time to get Mountain Daylight Time.
Time in ACST
00:00
Time in MDT
00:00
Use the slider above to convert Australian Central Standard Time to Mountain Daylight Time and view the day and night map at different times.
Day–night colors on the map:
Day
Civil twilight
Nautical twilight
Astronomical twilight
NightTime Conversion Chart
| ACST | MDT |
|---|---|
| 12am | 8:30am |
| 1am | 9:30am |
| 2am | 10:30am |
| 3am | 11:30am |
| 4am | 12:30pm |
| 5am | 1:30pm |
| 6am | 2:30pm |
| 7am | 3:30pm |
| 8am | 4:30pm |
| 9am | 5:30pm |
| 10am | 6:30pm |
| 11am | 7:30pm |
| 12pm | 8:30pm |
| 1pm | 9:30pm |
| 2pm | 10:30pm |
| 3pm | 11:30pm |
| 4pm | 0:30am |
| 5pm | 1:30am |
| 6pm | 2:30am |
| 7pm | 3:30am |
| 8pm | 4:30am |
| 9pm | 5:30am |
| 10pm | 6:30am |
| 11pm | 7:30am |