calculate time difference

Question

I have a jQuery clock that gives the time from 00:00 to 23:00.

Now I want to calculate the time difference between two times. Suppose the "in" time is 11:00, and the "out" time is 16:00.

How do I calculate the time difference in javascript?

Answer 1

You can use Date and setHours like that:

var first = new Date();
first.setHours(0, 11, 0, 0);

var second = new Date();
second.setHours(0, 16, 0, 0);

alert("Diff in seconds: " + (second - first));

Answer 2

You may prefer to use a third party JS date library such as Datejs.

Answer 3

As suggested from Barry, I would take a look at Datejs.

In the documentation page if you find the word "difference" you could find a guy asking for the same problem. As suggested in the comment reply you should use the TimeSpan class.

Hope it helps!

Answer 4

you should try momentjs, i think its much better than datejs.

According to momentjs example:

var a = moment([2007, 0, 29]);
var b = moment([2007, 0, 28]);
a.diff(b, 'days') // 1