Date 1
$date_query = array( 'relation' => 'OR', array( 'year' => 2018, 'month' => 08, 'day' => 01, 'compare' => '>=', 'column' => 'post_date', ), );
$date_query = array( 'relation' => 'OR', array( 'year' => 2018, 'month' => 08, 'day' => 01, 'compare' => '>=', 'column' => 'post_date', ), );