Index: mod/assignment/styles.css
===================================================================
--- mod/assignment/styles.css	(revision )
+++ mod/assignment/styles.css	(revision )
@@ -25,6 +25,10 @@
 #page-mod-assignment-submissions .submissions .finalgrade {text-align: right;}
 #page-mod-assignment-submissions .qgprefs #optiontable {text-align:right;margin-left:auto;}
 
+#page-mod-assignment-submissions.dir-rtl .fullname,
+#page-mod-assignment-submissions.dir-rtl .timemodified,
+#page-mod-assignment-submissions.dir-rtl .timemarked {text-align:right;}
+
 /** Styles for view.php **/
 #page-mod-assignment-view .feedback {margin:10px auto;}
 #page-mod-assignment-view .feedback .grade {text-align: right;}