Index: t3lib/config_default.php
===================================================================
--- t3lib/config_default.php	(Revision 6331)
+++ t3lib/config_default.php	(Arbeitskopie)
@@ -310,6 +310,12 @@
 if (!@is_file(PATH_typo3conf.'localconf.php'))	die('localconf.php is not found!');
 require(PATH_typo3conf.'localconf.php');
 
+// Set timezone
+if (date_default_timezone_get() == '') {
+	// Defaults to UTC to avoid PHP 5.3 warnings (behaviour like PHP <5.3)
+	date_default_timezone_set('UTC');
+}
+
 	// Defining the database setup as constants
 define('TYPO3_db', $typo_db);
 define('TYPO3_db_username', $typo_db_username);