Here is short code that changes the timezone for the linux server, you can add this single line of code into your .htaccess file to change the timezone/locale for your PHP files.
Follow the below steps:
Add the following code into .htaccess file and upload it to the server:
php_value date.timezone “America/New_York”
Now check the changes by adding following code into your PHP file:
echo date(‘h:s d-m-y’);
It will display your current time according to the timezone you have mentioned in the .htaccess file.
Here is the list of all supported locales/timezones for PHP:
http://php.net/manual/en/timezones.php
Thats all.