diff --git a/web/includes/functions.php b/web/includes/functions.php
index 6b9231019..141dbfea6 100644
--- a/web/includes/functions.php
+++ b/web/includes/functions.php
@@ -1050,9 +1050,15 @@ function parseSort( $saveToSession=false, $querySep='&' ) {
     case 'StartTime' :
       $sortColumn = 'E.StartTime';
       break;
+    case 'StartDateTime' :
+      $sortColumn = 'E.StartTime';
+      break;
     case 'EndTime' :
       $sortColumn = 'E.EndTime';
       break;
+    case 'EndDateTime' :
+      $sortColumn = 'E.EndTime';
+      break;
     case 'Length' :
       $sortColumn = 'E.Length';
       break;