Index: includes/FeedUtils.php
===================================================================
--- includes/FeedUtils.php	(revision 52356)
+++ includes/FeedUtils.php	(working copy)
@@ -54,7 +54,7 @@
 	}
 
 	public static function formatDiffRow( $title, $oldid, $newid, $timestamp, $comment, $actiontext='' ) {
-		global $wgFeedDiffCutoff, $wgContLang, $wgUser;
+		global $wgFeedDiffCutoff, $wgLang, $wgUser;
 		wfProfileIn( __FUNCTION__ );
 
 		$skin = $wgUser->getSkin();
@@ -87,9 +87,9 @@
 					$diffText = $de->getDiff(
 						wfMsg( 'previousrevision' ), // hack
 						wfMsg( 'revisionasof',
-							$wgContLang->timeanddate( $timestamp ),
-							$wgContLang->date( $timestamp ),
-							$wgContLang->time( $timestamp ) ) );
+							$wgLang->timeanddate( $timestamp ),
+							$wgLang->date( $timestamp ),
+							$wgLang->time( $timestamp ) ) );
 				}
 
 				if ( ( strlen( $diffText ) > $wgFeedDiffCutoff ) || ( $wgFeedDiffCutoff <= 0 ) ) {