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

Question

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 abov

Answer 1

This worked for me; the best solution so far

function calculateTimeDifference() {
    var date1 = new Date();
    var date2 = new Date();

    var diff = date2.getTime() - date1.getTime();

    var msec = diff;
    var hh = `0${Math.floor(msec / 1000 / 60 / 60)}`;
    msec -= hh * 1000 * 60 * 60;

    var mm = `0${Math.floor(msec / 1000 / 60)}`;
    msec -= mm * 1000 * 60;

    var ss = `0${Math.floor(msec / 1000)}`;
    msec -= ss * 1000;

    return hh.slice(-2) + ":" + mm.slice(-2) + ":" + ss.slice(-2); 
}

Answer 2

myStart = "01:30:00 am";
myEnd = "2:45:07 am";

function getTimeDiff(start, end) {

  return moment.duration(moment(end, "HH:mm:ss a").diff(moment(start, "HH:mm:ss a")));
}

diff = getTimeDiff(myStart, myEnd)
console.log(`${diff.hours()} Hour ${diff.minutes()} minutes`);

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.24.0/moment.min.js"></script>

Answer 3

var startTime = moment("12:16:59 am", 'hh:mm:ss a');
var endTime = moment("06:12:07 pm", 'hh:mm:ss a');

endTime.diff(startTime, 'hours');

Answer 4

var startTime = moment("12:16:59 am", 'hh:mm:ss a');
var endTime = moment("06:12:07 pm", 'hh:mm:ss a');

var totalHours = (endTime.diff(startTime, 'hours'));
var totalMinutes = endTime.diff(startTime, 'minutes');
var clearMinutes = totalMinutes % 60;
console.log(totalHours + " hours and " + clearMinutes + " minutes");

Answer 5

var startTime = moment("12:16:59");
var endTime = moment("06:12:07");

var duration = moment.duration(endTime.diff(startTime));
var hours = duration.asHours();