Hour difference between two times(HH:MM:SS a)in momentjs

Issue

I have two time without date

var startTime="12:16:59 am";
var endTime="06:12:07 pm";

I want to show the total hours in between the above times by using moment.js.

If it's not possible in moment.js then please let me know using by javascript.

Inputs:

var startTime="01:30:00 am";
var endTime="2:45:07 pm";

Expected Output:

1 hour and 15 minutes

Solution

Get Hours

I got the hours by using this code

endTime.diff(startTime, 'hours')

Get Minutes

i got the minutes by using this below code

var mins = moment.utc(moment(endTime, "HH:mm:ss").diff(moment(startTime, "HH:mm:ss"))).format("mm")

My Working code is

$scope.UpdateTimeSheet = function (rowEntity) {   
  if (rowEntity.StartTime.toString().length != 11) {
    rowEntity.StartTime = moment(rowEntity.StartTime).format("hh:mm:ss a");
  }

  if (rowEntity.EndTime.toString().length != 11) {
    rowEntity.EndTime = moment(rowEntity.EndTime).format("hh:mm:ss a");
  }

  var startTime = moment(rowEntity.StartTime, "hh:mm:ss a");
  var endTime = moment(rowEntity.EndTime, "hh:mm:ss a");

  var mins = moment.utc(moment(endTime, "HH:mm:ss").diff(moment(startTime, "HH:mm:ss"))).format("mm")

  rowEntity.TotalHours = endTime.diff(startTime, 'hours') + " Hrs and " + mins + " Mns";

}

Answered By - Ramesh Rajendran