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 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 1

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";

}

Solution 2

Try code below

// start time and end time
var startTime = moment('12:16:59 am', 'HH:mm:ss a');
var endTime = moment('06:12:07 pm', 'HH:mm:ss a');

// calculate total duration
var duration = moment.duration(endTime.diff(startTime));

// duration in hours
var hours = parseInt(duration.asHours());

// duration in minutes
var minutes = parseInt(duration.asMinutes()) % 60;

alert(hours + ' hour and ' + minutes + ' minutes.');

Check fiddle here - https://jsfiddle.net/nil4you/gs69Lv5x/

Solution 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');

Solution 4

//Get start time and end time
var startTime = moment("12:16:59 am", "HH:mm:ss a"),
endTime = moment("06:12:07 pm", "HH:mm:ss a");

1. Method 1

---

var dif = moment.duration(endTime.diff(startTime));
console.log([dif.hours(), dif.minutes(), dif.seconds()].join(':'));
console.log('dif in Mins: ', (dif.hours() * 60) + dif.minutes());

2. Method 2

---

console.log('hrs: ', moment(endTime).diff(startTime, 'hours'));
console.log('dif in Mins: ', moment(endTime).diff(moment(startTime), 'minutes'));

3. Method 3

---

var hrs = moment.utc(endTime.diff(startTime)).format("HH");
var min = moment.utc(endTime.diff(startTime)).format("mm");
var sec = moment.utc(endTime.diff(startTime)).format("ss");
console.log([hrs, min, sec].join(':'));

4. Formatted output

---

var dif = moment.duration(endTime.diff(startTime));
console.log(dif.humanize());

Solution 5

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>

View more solutions

Comments

[Vigneswaran Marimuthu]

Moment constructor like this is discouraged and will be removed in future. Try to use with format :)

[Ramesh Rajendran]

It's return hour only, not minutes :( .

[Vigneswaran Marimuthu]

@RameshRajendran You asked total hours in the question. So, what's your exact expectation ?

[Vigneswaran Marimuthu]

@RameshRajendran I don't think moment has inbuilt support for this

[Vigneswaran Marimuthu]

@RameshRajendran Check this one - stackoverflow.com/questions/1787939/…

[Nico Haase]

That's really ugly code... is there anything your code does better than the other?

[Sandeep]

var startTime=moment("09:00:00 pm", "HH:mm:ss a"); var endTime=moment("04:00:00 am", "HH:mm:ss a"); var duration = moment.duration(endTime.diff(startTime)); var hours = parseInt(duration.asHours()); var minutes = parseInt(duration.asMinutes())%60; alert (hours + ' hour and '+ minutes+' minutes.'); Ouput is -17 hours. But it should have been 7 hours. Can you please tell me if i am doing something wrong

[nirmal]

yes I saw that, it's happening when we put pm before am. Mostly people do calculate only when it's day changed. I have found solution but it's not a robust. Once I have robust solution probably by today, then I will update my answer.

[Tyler V]

The question was how can you do this in momentjs, this is how and its in one line.

[jzacharuk]

This is the only answer that allows easily changing the format (e.g. HH:mm:ss to mm:ss)

[Ahmed Ali]

Any explanation would help viewer a lot.

[Adrian Mole]

Your code snippet doesn't work. Maybe just use code fences rather than pretend it's a runnable snippet?