title: how to change date add hours in date angularjs
body: <p>i have below code i want to show date according to hours how to add 48 hours in my current date please help me in this i am new in angularjs.</p>
  
  <pre><code>"startjob_datetime" : ISODate("2017-03-13T14:21:12.231Z"),
  
            var hours  = 48 ;
           var startdate  = new Date(schedule_entry.startjob_datetime);
          var enddate  = new Date(schedule_entry.startjob_datetime).setHours(hours  );
  </code></pre>
  
  <p>i want enddate =  ISODate("2017-03-15T14:21:12.231Z"),
  but its not working please check</p>
  
  <p>and if normal working hours is 8 , than  how to change date according to this, because 48 hours means two days, but if 8 hours normal duty time  , it is almost 5 days </p>