diff --git a/app/adminapi/logic/project/ProjectManagerAppointmentLogic.php b/app/adminapi/logic/project/ProjectManagerAppointmentLogic.php
index 125278504..673586ffd 100644
--- a/app/adminapi/logic/project/ProjectManagerAppointmentLogic.php
+++ b/app/adminapi/logic/project/ProjectManagerAppointmentLogic.php
@@ -108,7 +108,7 @@ class ProjectManagerAppointmentLogic extends BaseLogic
                 'project_type_id' => $params['project_type_id'],
                 'project_manager' => $params['project_manager'],
                 'amount' => $params['amount'],
-                'project_approval_date' => $params['project_approval_date'],
+                'project_approval_date' => strtotime($params['project_approval_date']),
                 'start_date' => $params['start_date'],
                 'delivery_date' => $params['delivery_date'],
                 'remark' => $params['remark'],