marking container loading date as a timestamp in the modal

app/Models/Container.php

@@ -15,6 +15,8 @@ class Container extends AbstractModel implements Transportable
 
     protected $fillable = ['status'];
 
+    protected $dates = ['loading_date'];
+
     public function packingLists(): belongsToMany
     {
         return $this->belongsToMany(PackingList::class, ContainerPackingList::class, 'container_id', 'packing_list_id');