diff --git a/src/api/business-services.ts b/src/api/business-services.ts
index 2f924a5..76e1171 100644
--- a/src/api/business-services.ts
+++ b/src/api/business-services.ts
@@ -11,7 +11,7 @@ export type BusinessService = {
     id: string;
     title: string;
     description: string | null;
-    defaultDurationMinutes: number;
+    defaultDurationMinutes: number | null;
   };
 };
 
diff --git a/src/api/types.ts b/src/api/types.ts
index e5c6c72..6faa7a2 100644
--- a/src/api/types.ts
+++ b/src/api/types.ts
@@ -82,7 +82,7 @@ export type ServiceTemplate = {
   title: string;
   slug: string;
   description: string | null;
-  defaultDurationMinutes: number;
+  defaultDurationMinutes: number | null;
   isActive: boolean;
   categoryId: string;
   category?: BusinessCategory;
@@ -95,7 +95,6 @@ export type CreateServiceTemplatePayload = {
   slug?: string;
   categoryId: string;
   description?: string;
-  defaultDurationMinutes?: number;
   isActive?: boolean;
 };
 
diff --git a/src/views/ServiceTemplatesView.vue b/src/views/ServiceTemplatesView.vue
index f6f86fa..2f6cda3 100644
--- a/src/views/ServiceTemplatesView.vue
+++ b/src/views/ServiceTemplatesView.vue
@@ -55,7 +55,6 @@
             <p class="font-semibold text-text">{{ tpl.title }}</p>
             <p class="mt-0.5 text-xs text-muted" dir="ltr">{{ tpl.slug }}</p>
             <p v-if="tpl.description" class="mt-1 text-sm text-muted">{{ tpl.description }}</p>
-            <p class="mt-1 text-xs text-muted">مدت پیش‌فرض: {{ tpl.defaultDurationMinutes }} دقیقه</p>
             <AppBadge class="mt-2" :tone="tpl.isActive ? 'success' : 'warning'">
               {{ activeLabel(tpl.isActive) }}
             </AppBadge>
@@ -83,14 +82,6 @@
           placeholder="اختیاری — از عنوان ساخته می‌شود"
         />
         <AppTextarea id="tplDesc" v-model="form.description" label="توضیحات" rows="2" />
-        <AppInput
-          id="tplDuration"
-          v-model="form.defaultDurationMinutes"
-          label="مدت پیش‌فرض (دقیقه)"
-          type="number"
-          inputmode="numeric"
-          ltr
-        />
         <label class="flex items-center gap-2 text-sm text-text">
           <input v-model="form.isActive" type="checkbox" class="rounded border-border" />
           فعال
@@ -141,7 +132,6 @@ const form = ref({
   title: '',
   slug: '',
   description: '',
-  defaultDurationMinutes: '30',
   isActive: true,
 });
 
@@ -190,7 +180,6 @@ function openCreate() {
     title: '',
     slug: '',
     description: '',
-    defaultDurationMinutes: '30',
     isActive: true,
   };
   modalOpen.value = true;
@@ -203,7 +192,6 @@ function openEdit(tpl: ServiceTemplate) {
     title: tpl.title,
     slug: tpl.slug,
     description: tpl.description ?? '',
-    defaultDurationMinutes: String(tpl.defaultDurationMinutes),
     isActive: tpl.isActive,
   };
   modalOpen.value = true;
@@ -226,11 +214,6 @@ async function onSave() {
     error.value = 'اسلاگ فقط حروف کوچک انگلیسی و خط تیره باشد.';
     return;
   }
-  const duration = Number.parseInt(form.value.defaultDurationMinutes, 10);
-  if (!Number.isFinite(duration) || duration < 1) {
-    error.value = 'مدت پیش‌فرض معتبر نیست.';
-    return;
-  }
   saving.value = true;
   error.value = '';
   try {
@@ -238,7 +221,6 @@ async function onSave() {
       title: form.value.title.trim(),
       ...(slug ? { slug } : {}),
       description: form.value.description.trim() || undefined,
-      defaultDurationMinutes: duration,
       isActive: form.value.isActive,
     };
     if (editingId.value) {