Daylight Saving Time used for Australian Eastern Standard Time (AEST), for details check here. Daylight Saving Time used for Mountain Standard Time (MST), for details check here.
MST and AEST Time Calculator
• Australian Eastern Daylight Time Offset: UTC/GMT +11
• Mountain Daylight Time Offset: UTC/GMT -6
» Mountain Standard Time Conversions
» Australian Eastern Standard Time Conversions