How to use WC_Order_Query class with custom order status

Question

There is a new order status I created: packed.

I want to get orders with order status "packed". This order status must have been created at least 2 days ago. However, I have a problem with time. date_modified is not working according to local time. Has anyone encountered this problem and has a solution?

$two_days_ago           = date(strtotime('-2 day'), current_time('timestamp'));
$current_time           = current_time('timestamp');
$args = array(
  'limit'           => -1,
  'return'          => 'ids',
  'date_modified '  => $two_days_ago_tomorrow.'...'.current_time('timestamp'),
  'status'          => 'a-packed'
);
$query = new WC_Order_Query( $args );