date_default_timezone_set() function code example

Example 1: php default timezone

date_default_timezone_set("Asia/Kolkata");
// List of Supported Timezones https://www.php.net/manual/en/timezones.php

Example 2: date_default_timezone_set india

date_default_timezone_set('Asia/Kolkata');
$timestamp = date("Y-m-d H:i:s");