diff --git a/app/Http/Resources/RoomResource.php b/app/Http/Resources/RoomResource.php
index 73c2994..acfc44c 100644
--- a/app/Http/Resources/RoomResource.php
+++ b/app/Http/Resources/RoomResource.php
@@ -23,19 +23,6 @@ class RoomResource extends JsonResource
 
     protected function formatTaipei(?Carbon $value): ?string
     {
-        if ($value instanceof \Carbon\Carbon) {
-            return $value->timezone('Asia/Taipei')->format('Y-m-d H:i:s');
-        }
-
-        // 如果已經是字串（例如 JSON 解開的資料）
-        if (is_string($value)) {
-            try {
-                return \Carbon\Carbon::parse($value)->timezone('Asia/Taipei')->format('Y-m-d H:i:s');
-            } catch (\Throwable $e) {
-                return null;
-            }
-        }
-
-        return null;
+        return $value ? $value->timezone('Asia/Taipei')->format('Y-m-d H:i:s') : null;
     }
 }