diff --git a/app/Services/EventCalendarService.php b/app/Services/EventCalendarService.php
index 9c79c90..5f83b96 100644
--- a/app/Services/EventCalendarService.php
+++ b/app/Services/EventCalendarService.php
@@ -105,18 +105,28 @@ class EventCalendarService extends BaseService
     {
         try {
             DB::beginTransaction();
-            $existsWhere = [
-                ['pattern_id', '=', $data['pattern_id']],
-                ['id', '<>', $id]
-            ];
-            if (EventCalendar::query()->where($existsWhere)->whereIn(
-                'status',
-                [0, 1]
-            )->exists()
+            if (isset($data['status']) && $data['status'] == 0
+                && isset($data['start_time'])
             ) {
-                throw new Exception(
-                    __('service.event_calendar.pattern_exists')
-                );
+                $start_time = $data['start_time'];
+                $existsWhere = [
+                    ['pattern_id', '=', $data['pattern_id']],
+                    ['id', '<>', $id]
+                ];
+                if (EventCalendar::query()->where($existsWhere)->whereIn(
+                    'status',
+                    [0, 1]
+                )
+                    ->where(function ($query) use ($start_time) {
+                        $query->whereRaw(
+                            "'{$start_time}' BETWEEN start_time AND end_time"
+                        );
+                    })->exists()
+                ) {
+                    throw new Exception(
+                        __('service.event_calendar.pattern_exists')
+                    );
+                }
             }
             $model = EventCalendar::query()->findOrFail($id);
             $oldValues = $model->toArray();