diff --git a/api/src/Controller/WorkingHoursController.php b/api/src/Controller/WorkingHoursController.php
index c665f44..80944aa 100644
--- a/api/src/Controller/WorkingHoursController.php
+++ b/api/src/Controller/WorkingHoursController.php
@@ -69,13 +69,17 @@ class WorkingHoursController
      *
      * @return Response
      *
-     * @throws Exception
+     * @throws HttpInternalServerErrorException
      * @noinspection PhpUnusedParameterInspection
      */
     public function browse(Request $request, Response $response, array $args): Response
     {
         $repository = new WorkingHoursRepository($this->databases);
-        return $this->printResponse($response, $repository->findAll(), StatusCodeInterface::STATUS_OK);
+        try {
+            return $this->printResponse($response, $repository->findAll(), StatusCodeInterface::STATUS_OK);
+        } catch (Exception $exception) {
+            throw new HttpInternalServerErrorException($request, 'Der Wert für das Datum oder die Zeit ist falsch in der Datenbank', $exception);
+        }
     }
 
     /**