Versions of PHP after 5.10 include the date.timezone directive in php.ini. Many applications which reference time need this directive to be set. A list of accepted values can be found at: http://www.php.net/manual/en/timezones.php
The timezone is set as a quoted string, with no delimiter at the end, for example:
date.timezone = "Continent/City"
The location of the php.ini file that is in use can be found by loading a php file containing the following:
<?php phpinfo(); ?>
The resulting output will list, among other things, ‘Configuration File (php.ini) Path’ (typically, /etc).
Restart apache (or other server) for the changes to take effect:
service httpd restart
