Timestamp between Javascript and PHP

Question

Javascript:

I have object cell with something date

params.date = cell.getDate();
params.timestamp = cell.getDate().getTime() / 1000;
console.log(para         


        

Answer 1

When you get timestamp from Javacript date object :

it output will be interms of milli-seconds

 <script>
        var d = new Date();
        alert(d.getTime());

     </script>

output : 1386746353000

Where as php date object timestamp interms of seconds

<?php 
        $date = new DateTime();
        echo $current_timestamp = $date->getTimestamp();
     ?>

output : 1386746353

So when you are going to use javascript date object timestamp with php date object you should divide timestamp of javascript by 1000 and use it in php

Answer 2

params.date = cell.getDate();

Returns the DATE not the TIME.

params.timestamp = cell.getDate().getTime() / 1000;

is converting the date into a date+time - not reading the current time.

But even if you get the timestamp in javascript, the output of PHP's date function will depend on what timezone it is in.

Answer 3

The UNIX Timestamp 1368028800 corresponds to the date Wed, 08 May 2013 16:00:00 GMT. In your example, you are on the China Standard Time (GMT+8), so Javascript display the datetime for this timezone (8 hours later -> 09 May)