diff --git a/application/TimerecordingBilling/TimerecordingBillingController.php b/application/TimerecordingBilling/TimerecordingBillingController.php
index 54976260a..e0c4b687a 100644
--- a/application/TimerecordingBilling/TimerecordingBillingController.php
+++ b/application/TimerecordingBilling/TimerecordingBillingController.php
@@ -224,7 +224,9 @@ class TimerecordingBillingController extends mfBaseController
         $file = fopen("php://output", 'w');
         header('Content-Type: text/csv; charset=utf-8');
         header('Content-Disposition: attachment; filename=' . $filename);
-        $monthbmd = date("n", strtotime("01." . $month));
+        $monthunix=(strtotime("01." .$month));
+        $monthbmd = date("n", $monthunix);
+        $monthend = date("d.m.Y", strtotime("last day of this month",$monthunix));
         $companybmd = "1";
         if ($nlz == 0) {
             $headerarray = ["Monat", "Firma", "Mitarbeiter", "Lohnart", "Menge", "Satz", "Betrag", "Kostenstelle", "NLZ-Kennzeichen", "NLZ Von-Datum", "NLZ Bis-Datum"];
@@ -339,10 +341,9 @@ class TimerecordingBillingController extends mfBaseController
                 if ($timerecordingBillingEmployee->holidays>0) {
                     //last day of month
 
-                    $month= strtotime("01." . $month);
-                    $monthend = date("d.m.Y", strtotime("last day of this month", $month));
 
-                    $bodyarray = [$companybmd, $employee_number, 1, "1", "", "4", '30.06.2024', '30.06.2024', $timerecordingBillingEmployee->holidays, '0'];
+
+                    $bodyarray = [$companybmd, $employee_number, 1, "1", "", "4", $monthend, $monthend, $timerecordingBillingEmployee->holidays, '0'];
                     fputcsv($file, $bodyarray, ";");
 
                 }