diff --git a/app/Services/EntertainmentService.php b/app/Services/EntertainmentService.php
index 773d3cd..b47da70 100644
--- a/app/Services/EntertainmentService.php
+++ b/app/Services/EntertainmentService.php
@@ -125,7 +125,7 @@ private function getWeekendLateNightRisk(int $tenantId, string $startDate, strin
         // 심야 사용 (barobill 카드 거래 내역에서 시간 확인)
         $lateNightResult = DB::table('expense_accounts as ea')
             ->leftJoin('barobill_card_transactions as bct', function ($join) {
-                $join->on('ea.receipt_no', '=', 'bct.approval_no')
+                $join->on('ea.receipt_no', '=', 'bct.approval_num')
                     ->on('ea.tenant_id', '=', 'bct.tenant_id');
             })
             ->where('ea.tenant_id', $tenantId)
@@ -133,9 +133,10 @@ private function getWeekendLateNightRisk(int $tenantId, string $startDate, strin
             ->whereBetween('ea.expense_date', [$startDate, $endDate])
             ->whereNull('ea.deleted_at')
             ->whereRaw('DAYOFWEEK(ea.expense_date) NOT IN (1, 7)') // 주말 제외 (중복 방지)
+            ->whereNotNull('bct.use_time')
             ->where(function ($q) {
-                $q->whereRaw('HOUR(bct.use_time) >= ?', [self::LATE_NIGHT_START])
-                    ->orWhereRaw('HOUR(bct.use_time) < ?', [self::LATE_NIGHT_END]);
+                $q->whereRaw('CAST(SUBSTRING(bct.use_time, 1, 2) AS UNSIGNED) >= ?', [self::LATE_NIGHT_START])
+                    ->orWhereRaw('CAST(SUBSTRING(bct.use_time, 1, 2) AS UNSIGNED) < ?', [self::LATE_NIGHT_END]);
             })
             ->selectRaw('COUNT(*) as count, COALESCE(SUM(ea.amount), 0) as total')
             ->first();
@@ -154,7 +155,7 @@ private function getProhibitedBizTypeRisk(int $tenantId, string $startDate, stri
     {
         $result = DB::table('expense_accounts as ea')
             ->join('barobill_card_transactions as bct', function ($join) {
-                $join->on('ea.receipt_no', '=', 'bct.approval_no')
+                $join->on('ea.receipt_no', '=', 'bct.approval_num')
                     ->on('ea.tenant_id', '=', 'bct.tenant_id');
             })
             ->where('ea.tenant_id', $tenantId)
diff --git a/app/Services/WelfareService.php b/app/Services/WelfareService.php
index 7cad512..6231f9f 100644
--- a/app/Services/WelfareService.php
+++ b/app/Services/WelfareService.php
@@ -177,7 +177,7 @@ private function getPrivateUseRisk(int $tenantId, string $startDate, string $end
         // 심야 사용 (barobill 조인)
         $lateNightResult = DB::table('expense_accounts as ea')
             ->leftJoin('barobill_card_transactions as bct', function ($join) {
-                $join->on('ea.receipt_no', '=', 'bct.approval_no')
+                $join->on('ea.receipt_no', '=', 'bct.approval_num')
                     ->on('ea.tenant_id', '=', 'bct.tenant_id');
             })
             ->where('ea.tenant_id', $tenantId)
@@ -185,9 +185,10 @@ private function getPrivateUseRisk(int $tenantId, string $startDate, string $end
             ->whereBetween('ea.expense_date', [$startDate, $endDate])
             ->whereNull('ea.deleted_at')
             ->whereRaw('DAYOFWEEK(ea.expense_date) NOT IN (1, 7)')
+            ->whereNotNull('bct.use_time')
             ->where(function ($q) {
-                $q->whereRaw('HOUR(bct.use_time) >= 22')
-                    ->orWhereRaw('HOUR(bct.use_time) < 6');
+                $q->whereRaw('CAST(SUBSTRING(bct.use_time, 1, 2) AS UNSIGNED) >= 22')
+                    ->orWhereRaw('CAST(SUBSTRING(bct.use_time, 1, 2) AS UNSIGNED) < 6');
             })
             ->selectRaw('COUNT(*) as count, COALESCE(SUM(ea.amount), 0) as total')
             ->first();