diff --git a/public/typo3conf/ext/ep_products/Classes/Service/IcalService.php b/public/typo3conf/ext/ep_products/Classes/Service/IcalService.php
index c64cf291..dc5f1c14 100644
--- a/public/typo3conf/ext/ep_products/Classes/Service/IcalService.php
+++ b/public/typo3conf/ext/ep_products/Classes/Service/IcalService.php
@@ -135,6 +135,12 @@ class IcalService implements SingletonInterface
      */
     protected function createCalendarInstance(): Vcalendar
     {
-        return Vcalendar::factory([ Vcalendar::UNIQUE_ID => 'www.ep-reisen.de' ]);
+        $vcalendar = Vcalendar::factory([ Vcalendar::UNIQUE_ID => 'www.ep-reisen.de' ]);
+        $vcalendar->setXprop(
+            Vcalendar::X_WR_TIMEZONE,
+            'Europe/Berlin'
+        );
+
+        return $vcalendar;
     }
 }
\ No newline at end of file