PHP по умолчанию часовой пояс
date_default_timezone_set("Asia/Kolkata");
// List of Supported Timezones https://www.php.net/manual/en/timezones.php
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date_default_timezone_set("Asia/Kolkata");
// List of Supported Timezones https://www.php.net/manual/en/timezones.php<?php
$date = new DateTime("now", new DateTimeZone('America/New_York') );
echo $date->format('Y-m-d H:i:s');echo date_default_timezone_get(); //UTC
//Read more at https://www.php.net/manual/en/function.date-default-timezone-get.php$date = new \DateTime();
$date->setTimezone(new \DateTimeZone('+0800')); //GMT
echo $date->format('Y-m-d H:i:s');
// 2020-11-20 15:23:49