Question

I need code in JavaScript which returns the time difference between two strings in hours.

Example,
Strings are:
20.07.2012, 01:00:00 and 22.07.2012, 15:00:00:

A the result is 62 hours.

Answer 1

var re = /[.:]|, /,
    date1 = "22.07.2012, 15:00:00".split(re).map(Number),
    date2 = "20.07.2012, 01:00:00".split(re).map(Number);


var diffMs = Date.UTC( date1[2], date1[1] - 1, date1[0], date1[3], date1[4], date1[5] ) -
             Date.UTC( date2[2], date2[1] - 1, date2[0], date2[3], date2[4], date2[5] );

var hours = diffMs / (3600 * 1000);
//62