diff --git a/frontend/components/PublicDynamicForm.vue b/frontend/components/PublicDynamicForm.vue
index a3cdd07..9a77972 100644
--- a/frontend/components/PublicDynamicForm.vue
+++ b/frontend/components/PublicDynamicForm.vue
@@ -159,7 +159,16 @@ const submit = async () => {
               @input="e => form.startDate = new Date(e.target.value)"
           />
         </UFormGroup>
-        <UFormGroup label="Ende">
+        <UFormGroup label="Dauer (Stunden)">
+          <input
+              type="number"
+              step="0.25"
+              placeholder="z.B. 1.5"
+              class="block w-full rounded-md border-0 py-1.5 text-gray-900 shadow-sm ring-1 ring-inset ring-gray-300 focus:ring-2 focus:ring-primary-600 sm:text-sm sm:leading-6 px-2"
+              @input="e => form.endDate = dayjs(form.startDate).add(parseFloat(e.target.value), 'hour').toDate()"
+          />
+        </UFormGroup>
+        <UFormGroup label="Ende" class="col-span-2">
           <input
               type="datetime-local"
               class="block w-full rounded-md border-0 py-1.5 text-gray-900 shadow-sm ring-1 ring-inset ring-gray-300 focus:ring-2 focus:ring-primary-600 sm:text-sm sm:leading-6 px-2"