diff --git a/app/Http/Controllers/Mobile/CourseController.php b/app/Http/Controllers/Mobile/CourseController.php
index 638f2d6..7e91b2c 100755
--- a/app/Http/Controllers/Mobile/CourseController.php
+++ b/app/Http/Controllers/Mobile/CourseController.php
@@ -1112,7 +1112,7 @@ class CourseController extends CommonController
         if ($timestamp === false) {
             return $value;
         }
-        return date('Y-m-d H:i:s', $timestamp);
+        return date('Y-m-d 00:00:00', $timestamp);
     }
 
 }