diff --git a/app/Service/v3/Implementations/AppointmentTimeService.php b/app/Service/v3/Implementations/AppointmentTimeService.php
index a3b546c..f784317 100644
--- a/app/Service/v3/Implementations/AppointmentTimeService.php
+++ b/app/Service/v3/Implementations/AppointmentTimeService.php
@@ -101,11 +101,7 @@ class AppointmentTimeService implements AppointmentTimeServiceInterface
         $peakPeriod = strtotime('16:00');
         $peakPeriodEnd = strtotime('18:00');
         //取得订单下所有店铺时间段 交集 并计算时间段横跨单位区间长度
-        if($endTime == $startTime){
-            $length = 1;
-        }else{
-            $length = ceil(($endTime - $startTime) / (30*60));
-        }
+        $length = ceil(($endTime - $startTime) / (30*60)) + 1;
         for ($i=1;$i<=$length;$i++){
             $addTime = $startTime + (30*60*$i);
             if($addTime >= $peakPeriod && $addTime < $peakPeriodEnd){