I have tried getting the value with JavaScript functions but getting Invalid date. Also,
var dat = new Date(String(Archertech.UI.GenericContent.GetInstance().getFieldValue(ScheduledDate,false)));
gives the date from one field only, but there are two date fields.
I wonder where can I get the list of functions like
Archertech.UI.GenericContent.GetInstance().getFieldValue(ScheduledDate,false)
There is a Client Manager frontend API that is available which has many functions that will give you the values from fields in the Application.
To get all the function list :
Now, to get a date field value, use
$CM.getFieldValue(fieldId);