How can I get seconds since epoch in Javascript?

Question

On Unix, I can run date \'+%s\' to get the amount of seconds since epoch. But I need to query that in a browser front-end, not back-end.

Is there a way

Answer 1

My preferred way:

var msEpoch = (+new Date());
var sEpoch = (+new Date()) / 1000;

For more information on the + jump down the rabbit hole.

Answer 2

EPOCH means time from 01 January 1970
var date = new Date();
Following line will return the number of milliseconds from 01 Jaunary 1970
var ms = date.getTime();
Following line will convert milliseconds to seconds
var seconds = Math.floor(ms/1000);
console.log("Seconds since epoch =",seconds);

Answer 3

You wanted seconds since epoch

function seconds_since_epoch(){ return Math.floor( Date.now() / 1000 ) }

example use

foo = seconds_since_epoch();

Answer 4

Try this:

new Date().getTime() / 1000

You might want to use Math.floor() or Math.round() to cut milliseconds fraction.