How do you get a timestamp in JavaScript?

Question

How can I get a timestamp in JavaScript?

Something similar to Unix timestamp, that is, a single number that represents the current time and date. Either as a number

Answer 1

console.log(new Date().valueOf()); // returns the number of milliseconds since the epoch

Answer 2

This one has a solution : which converts unixtime stamp to tim in js try this

var a = new Date(UNIX_timestamp*1000);
var hour = a.getUTCHours();
var min = a.getUTCMinutes();
var sec = a.getUTCSeconds();

Answer 3

I learned a really cool way of converting a given Date object to a Unix timestamp from the source code of JQuery Cookie the other day.

Here's an example:

var date = new Date();
var timestamp = +date;

Answer 4

If want a basic way to generate a timestamp in Node.js this works well.

var time = process.hrtime();
var timestamp = Math.round( time[ 0 ] * 1e3 + time[ 1 ] / 1e6 );

Our team is using this to bust cache in a localhost environment. The output is /dist/css/global.css?v=245521377 where 245521377 is the timestamp generated by hrtime().

Hopefully this helps, the methods above can work as well but I found this to be the simplest approach for our needs in Node.js.

Answer 5

var time = Date.now || function() {
  return +new Date;
};

time();

Answer 6

This seems to work.

console.log(clock.now);
// returns 1444356078076

console.log(clock.format(clock.now));
//returns 10/8/2015 21:02:16

console.log(clock.format(clock.now + clock.add(10, 'minutes'))); 
//returns 10/8/2015 21:08:18

var clock = {
    now:Date.now(),
    add:function (qty, units) {
            switch(units.toLowerCase()) {
                case 'weeks'   :  val = qty * 1000 * 60 * 60 * 24 * 7;  break;
                case 'days'    :  val = qty * 1000 * 60 * 60 * 24;  break;
                case 'hours'   :  val = qty * 1000 * 60 * 60;  break;
                case 'minutes' :  val = qty * 1000 * 60;  break;
                case 'seconds' :  val = qty * 1000;  break;
                default       :  val = undefined;  break;
                }
            return val;
            },
    format:function (timestamp){
            var date = new Date(timestamp);
            var year = date.getFullYear();
            var month = date.getMonth() + 1;
            var day = date.getDate();
            var hours = date.getHours();
            var minutes = "0" + date.getMinutes();
            var seconds = "0" + date.getSeconds();
            // Will display time in xx/xx/xxxx 00:00:00 format
            return formattedTime = month + '/' + 
                                day + '/' + 
                                year + ' ' + 
                                hours + ':' + 
                                minutes.substr(-2) + 
                                ':' + seconds.substr(-2);
            }
};