diff --git a/nextcloud.js b/nextcloud.js
index 90efb26..c738453 100644
--- a/nextcloud.js
+++ b/nextcloud.js
@@ -118,7 +118,7 @@ module.exports = function (RED) {
           organizer: e.organizer || '',
           uid: e.uid || '',
           isRecurring: false,
-          allDay: (e.duration.toSeconds() === 86400)
+          allDay: ((e.duration.toSeconds() % 86400) === 0)
         }
       }
     }