Difference between two times in format (hh: mm: ss)

Question

I have two times, let say:

t1= \'05:34:01\' ;
t2= \'20:44:44\' ;

I want two evaluate difference between these two times in same format. Li

Answer 1

I also used momentjs but with duration and got correct different between times:

var t1 = moment('05:34:01', "HH:mm:ss");
var t2 = moment('20:44:44', "HH:mm:ss");

var start_date = moment(t1, 'YYYY-MM-DD HH:mm:ss');
var end_date = moment(t2, 'YYYY-MM-DD HH:mm:ss');
var duration = moment.duration(end_date.diff(t1));

var t3 = duration.hours() + ":" + duration.minutes() + ":" + duration.seconds();
alert(t3);
console.log(duration.hours());
console.log(duration.minutes());
console.log(duration.seconds());