Index: MessagesDe.php
===================================================================
--- MessagesDe.php	(revision 22082)
+++ MessagesDe.php	(working copy)
@@ -134,18 +134,26 @@
         'Withoutinterwiki'          => array( 'Fehlende_Interwikis' ),
 );
 
+
+$datePreferences = array(
+	'default',
+	'dmyt',
+	'tdmy',
+	'ISO 8601'
+);
+
 $dateFormats = array(
-	'mdy time' => 'H:i',
-	'mdy date' => 'M j. Y',
-	'mdy both' => 'H:i, M j. Y',
+	'dmyt time' => 'H:i',
+	'dmyt date' => 'j. F Y',
+	'dmyt both' => 'j. M Y, H:i',
 
-	'dmy time' => 'H:i',
-	'dmy date' => 'j. F Y',
-	'dmy both' => 'H:i, j. M Y',
+	'tdmy time' => 'H:i',
+	'tdmy date' => 'j. F Y',
+	'tdmy both' => 'H:i, j. M Y',
 
-	'ymd time' => 'H:i',
-	'ymd date' => 'Y M j',
-	'ymd both' => 'H:i, Y M j',
+	'ISO 8601 time' => 'xnH:xni:xns',
+	'ISO 8601 date' => 'xnY-xnm-xnd',
+	'ISO 8601 both' => 'xnY-xnm-xnd"T"xnH:xni:xns'
 );
 
 $messages = array(