JAVASCRIPT

JS time difference in minutes

var today = new Date();
var Christmas = new Date("2012-12-25");
var diffMs = (Christmas - today); // milliseconds between now & Christmas
var diffDays = Math.floor(diffMs / 86400000); // days
var diffHrs = Math.floor((diffMs % 86400000) / 3600000); // hours
var diffMins = Math.round(((diffMs % 86400000) % 3600000) / 60000); // minutes
alert(diffDays + " days, " + diffHrs + " hours, " + diffMins + " minutes until Christmas 2009 =)");
 Run code snippet

time difference in minutes in js

var startTime = new Date('2012/10/09 12:00'); 
var endTime = new Date('2013/10/09 12:00');
var difference = endTime.getTime() - startTime.getTime(); // This will give difference in milliseconds
var resultInMinutes = Math.round(difference / 60000);

js calculate date difference

var DateDiff = {

    inDays: function(d1, d2) {
        var t2 = d2.getTime();
        var t1 = d1.getTime();

        return parseInt((t2-t1)/(24*3600*1000));
    },

    inWeeks: function(d1, d2) {
        var t2 = d2.getTime();
        var t1 = d1.getTime();

        return parseInt((t2-t1)/(24*3600*1000*7));
    },

    inMonths: function(d1, d2) {
        var d1Y = d1.getFullYear();
        var d2Y = d2.getFullYear();
        var d1M = d1.getMonth();
        var d2M = d2.getMonth();

        return (d2M+12*d2Y)-(d1M+12*d1Y);
    },

    inYears: function(d1, d2) {
        return d2.getFullYear()-d1.getFullYear();
    }
}

var dString = "May, 20, 1984";

var d1 = new Date(dString);
var d2 = new Date();

document.write("<br />Number of <b>days</b> since "+dString+": "+DateDiff.inDays(d1, d2));
document.write("<br />Number of <b>weeks</b> since "+dString+": "+DateDiff.inWeeks(d1, d2));
document.write("<br />Number of <b>months</b> since "+dString+": "+DateDiff.inMonths(d1, d2));
document.write("<br />Number of <b>years</b> since "+dString+": "+DateDiff.inYears(d1, d2));

javascript time difference

// use new Date to specify the dates
var myDate = new Date(/*YOUR DATE VALUES, STRING or NUMBER PARAMETERS*/); 

// example
var date1 = new Date("2010-9-16 13:30:58"); // Thu Sep 16 2010 13:30:58
var date2 = new Date(2015, 7, 18, 14, 20, 48); // Tue Aug 18 2015 14:20:48

// checking with date is more recent to get the other out of it and store the result in dateDifference variable
var dateDifference;
if (date2 < date1) {
    dateDifference = date2 - date1;
}
else{
    dateDifference = date1 - date2;
}

console.log(dateDifference); // the result will be in milliseconds

time difference in javascript

//start timer
console.time();
//your code
//example:
let a = 1000 / 90;
let b = a%(100/90*198) ^ 89 >> 1 << 2;
//stop timer
var timeTakenForCodeToRun = console.timeEnd();