Warning: date() [function.date]: It is not safe to rely on the system's timezone settings.

Website showing the following error :

Warning: date() [function.date]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Asia/Calcutta' for 'IST/5.0/no DST' instead in /home/username/public_html/../../flexycms_core/libs/smarty/plugins/prefilter.tpl_labels.php on line17

Add the following code at the end of the /home/quickpri/public_html/../../flexycms_core/libs/smarty/plugins/prefilter.tpl_labels.php file :

<?php

$timezone = "Asia/Calcutta";

if(function_exists('date_default_timezone_set')) date_default_timezone_set($timezone);

echo date('d-m-Y H:i:s');

?>