diff --git a/module/CudiBundle/Controller/Admin/Sale/Session/OpeningHourController.php b/module/CudiBundle/Controller/Admin/Sale/Session/OpeningHourController.php
index 5b00254c8..6e1d4760f 100644
--- a/module/CudiBundle/Controller/Admin/Sale/Session/OpeningHourController.php
+++ b/module/CudiBundle/Controller/Admin/Sale/Session/OpeningHourController.php
@@ -289,7 +289,7 @@ private function calculateNextTime($time, $endTime)
         $minute = explode(':', $time)[1];
         $endHour = explode(':', $endTime)[0];
         $endMinute = explode(':', $endTime)[1];
-        if ($minute == '00') {
+        if ($minute == '00' or $minute == '05') {
             $minute = '30';
         } else {
             $hour = strval($hour + 1);