diff --git a/src/timepicker/timepicker.js b/src/timepicker/timepicker.js
index 42def45fcd..a89e6d8a4f 100644
--- a/src/timepicker/timepicker.js
+++ b/src/timepicker/timepicker.js
@@ -92,7 +92,7 @@ angular.module('ui.bootstrap.timepicker', [])
   };
 
   $scope.noToggleMeridian = function() {
-    if (selected.getHours() < 13) {
+    if (selected.getHours() < 12) {
       return addMinutes(selected, 12 * 60) > max;
     } else {
       return addMinutes(selected, -12 * 60) < min;