Create a Javascript algorithm to compute the difference between two dates in days: hours: min

Question

CHALLENGE :::::: Javascript date algorithm

Answer 1

var d1 = new Date('05/07/2016');
var d2 = new Date('01/15/2017');
alert(Math.ceil(Math.abs(d2.getTime()-d1.getTime())/86400000));

Answer 2

my attempt:
var d = new Date("Wed Mar 25 2015 09:56:24 GMT+0100 (W. Europe Standard Time)");
//var d1 = new Date(2015, 2, 23 ,10,22);
//var d2 = new Date('01/15/2017');
//credits to previous answer
var d1 = new Date("Wed Mar 5 2015 09:56:24 GMT+0100 (W. Europe Standard Time)");
var d3 = d.getTime()-d1.getTime();
var days =Math.floor(Math.abs(d3/86400000));
//document.write ('\n'+days);
var hours = Math.floor((d3-days*86400000)/3600000);
var mints = Math.floor((d3-days*86400000-hours*3600000)/60000);
var an= days+ " days: "+Math.abs(hours)+" hours: "+Math.abs(mints)+" minutes " ;
document.write(an);

https://code.sololearn.com/WUN4rJEWPM25/?ref=app