How to Determine a User\'s Timezone Using PHP and JavaScript?

Get User Timezone

Question:

How can I determine a web user's timezone using PHP or JavaScript?

Answer:

PHP Function:

<code class="php">session_start();
$timezone = $_SESSION['time'];</code>

JavaScript Function:

<code class="javascript">$(document).ready(function() {
    if ("<?php echo $timezone; ?>".length == 0) {
        var visitortime = new Date();
        var visitortimezone = "GMT " + -visitortime.getTimezoneOffset() / 60;
        $.ajax({
            type: "GET",
            url: "http://example.com/timezone.php",
            data: 'time=' + visitortimezone,
            success: function() {
                location.reload();
            }
        });
    }
});</code>

PHP Server-Side Script (timezone.php):

<code class="php">session_start();
$_SESSION['time'] = $_GET['time'];</code>

Process:

1. Add the PHP function to your page to retrieve the session variable.
2. Include jQuery and the JavaScript function in the page's section.
3. Create the timezone.php file on your server and provide the necessary URL.

By executing this process, you can determine the user's timezone and store it in the PHP session variable $timezone.

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