diff --git a/app/Admin/Controllers/Activity/IndexController.php b/app/Admin/Controllers/Activity/IndexController.php
index 12583e0..c40ab6c 100644
--- a/app/Admin/Controllers/Activity/IndexController.php
+++ b/app/Admin/Controllers/Activity/IndexController.php
@@ -120,6 +120,17 @@ class IndexController extends AdminController
 
                 return back()->withInput()->with(compact('error'));
             }
+
+            if ($request->type == Activity::TYPE_SCOPE && (empty($request->start_at) || empty($request->end_at))) {
+                $error = new MessageBag([
+                    'title'   => '错误',
+                    'message' => '必须添加延期天数',
+                ]);
+
+                return back()->withInput()->with(compact('error'));
+            }
+            $form->start_at = $form->start_at . ' 00:00:01';
+            $form->end_at   = $form->end_at . ' 23:59:59';
         });
 
         return $form;