update something can update

src/common/utils/datetime.utils.ts

@@ -48,6 +48,10 @@ export class DateTimeUtils {
     }
   }
 
+  static isExpired(expires: string): boolean {
+    return DateTime.fromISO(expires) < DateTime.now()
+  }
+
   static isOverlap(
     startA: DateTime,
     endA: DateTime,