{{item.AppFromTimeSlot|date:'dd MMM yyyy '}}
{{item.AppFromTimeSlot|date}}
Above two format gives one day ahead date if time part is after 12 pm
{{item.AppFromTimeSlot|date:'shortTime'}}
It gives AM instead of PM if time part is after that 12 pm
{{item.AppFromTimeSlot|date:'dd MMM yyyy '}}
{{item.AppFromTimeSlot|date}}
Above two format gives one day ahead date if time part is after 12 pm
{{item.AppFromTimeSlot|date:'shortTime'}}
It gives AM instead of PM if time part is after that 12 pm
The date pipe uses the internationalization API, which is still in beta, so it is not well supported everywhere.
You’re probably better off using momentJs and creating your own pipe for this.