[javascript] Convert normal date to unix timestamp

How can I convert normal date 2012.08.10 to unix timestamp in javascript?

Fiddle: http://jsfiddle.net/J2pWj/




I've seen many posts here that convert it in PHP, Ruby, etc... But I need to do this inside JS.

After comparing timestamp with the one from PHP, none of the above seems correct for my timezone. The code below gave me same result as PHP which is most important for the project I am doing.

function getTimeStamp(input) {_x000D_
    var parts = input.trim().split(' ');_x000D_
    var date = parts[0].split('-');_x000D_
 var time = (parts[1] ? parts[1] : '00:00:00').split(':');_x000D_
_x000D_
 // NOTE:: Month: 0 = January - 11 = December._x000D_
 var d = new Date(date[0],date[1]-1,date[2],time[0],time[1],time[2]);_x000D_
 return d.getTime() / 1000;_x000D_
}_x000D_
_x000D_
// USAGE::_x000D_
var start = getTimeStamp('2017-08-10');_x000D_
var end = getTimeStamp('2017-08-10 23:59:59');_x000D_
_x000D_
console.log(start + ' - ' + end);

I am using this on NodeJS, and we have timezone 'Australia/Sydney'. So, I had to add this on .env file:

TZ = 'Australia/Sydney'

Above is equivalent to:

process.env.TZ = 'Australia/Sydney'

You could simply use the unary + operator

(+new Date('2012.08.10')/1000).toFixed(0);

http://xkr.us/articles/javascript/unary-add/ - look under Dates.

You can do it using Date.parse() Method.

Date.parse($("#yourCustomDate).val())

Date.parse("03.03.2016") output-> 1456959600000

Date.parse("2015-12-12") output-> 1449878400000

You can use Date.parse(), but the input formats that it accepts are implementation-dependent. However, if you can convert the date to ISO format (YYYY-MM-DD), most implementations should understand it.

See Why does Date.parse give incorrect results?.

You should check out the moment.js api, it is very easy to use and has lots of built in features.

I think for your problem, you could use something like this:

var unixTimestamp = moment('2012.08.10', 'YYYY.MM.DD').unix();

var datestr = '2012.08.10';
var timestamp = (new Date(datestr.split(".").join("-")).getTime())/1000;

convert timestamp to unix timestamp.

const date = 1513787412; const unixDate = new Date(date * 1000);// Dec 20 2020 (object)

to get the timeStamp after conversion const TimeStamp = new Date(date*1000).getTime(); //1513787412000

var date = new Date('2012.08.10');
var unixTimeStamp = Math.floor(date.getTime() / 1000);

In this case it's important to return only a whole number (so a simple division won't do), and also to only return actually elapsed seconds (that's why this code uses Math.floor() and not Math.round()).

parseInt((new Date('2012.08.10').getTime() / 1000).toFixed(0))

It's important to add the toFixed(0) to remove any decimals when dividing by 1000 to convert from milliseconds to seconds.

The .getTime() function returns the timestamp in milliseconds, but true unix timestamps are always in seconds.