MDL-19417 added timezone settings info; backported from HEAD

config-dist.php

@@ -131,6 +131,11 @@ $CFG->admin = 'admin';
 //
 // These are additional tweaks for which no GUI exists in Moodle yet.
 //
+// Starting in PHP 5.3 administrators should specify default timezone
+// in PHP.ini, you can also specify it here if needed.
+// See details at: http://php.net/manual/en/function.date-default-timezone-set.php
+// List of time zones at: http://php.net/manual/en/timezones.php
+//     date_default_timezone_set('Australia/Perth');
 //
 // Change the key pair lifetime for Moodle Networking
 // The default is 28 days. You would only want to change this if the key