diff --git a/app/Service/v3/Implementations/AppointmentTimeService.php b/app/Service/v3/Implementations/AppointmentTimeService.php
index c115d47..31c0311 100644
--- a/app/Service/v3/Implementations/AppointmentTimeService.php
+++ b/app/Service/v3/Implementations/AppointmentTimeService.php
@@ -42,8 +42,12 @@ class AppointmentTimeService implements AppointmentTimeServiceInterface
         $time4 = array_values(array_column($stores,'time4'));
         $startTimeArr = array_merge($time1,$time3);
         $endTimeArr = array_merge($time2,$time4);
-        array_filter($startTimeArr);
-        array_filter($endTimeArr);
+        $startTimeArr = array_values(array_filter($startTimeArr,function ($value){
+            return boolval($value);
+        }));
+        $endTimeArr = array_values(array_filter($endTimeArr,function ($value){
+            return boolval($value);
+        }));
         $startTime = max($startTimeArr);
         $endTime = min($endTimeArr);
         // foreach ($stores as $store){