diff --git a/app/Service/DepositService.php b/app/Service/DepositService.php
index 23de9e2..e7568b3 100644
--- a/app/Service/DepositService.php
+++ b/app/Service/DepositService.php
@@ -35,8 +35,14 @@ class DepositService
      */
     public function calculateSummary(int $markId, $start, $end): array
     {
-        $days = $start->diffInDays($end, false);
+        $fullDays = $start->copy()->diffInDays($end); // 7
+        $totalHours = $start->copy()->diffInHours($end); // 191 часов
+        $hoursRemainder = $totalHours - ($fullDays * 24); // остаток: 191 - 7*24 = 191 - 168 = 23
 
+        $threshold = 10; // если остаток по часам больше этого порога, то добавим день
+
+        $days = $fullDays + ($hoursRemainder > $threshold ? 1 : 0);
+        
         $tariffs = UniModel::model('pipi_auto_tariffs')
             ->where('model_id', $markId)
             ->get();