date

$date_query = array(
	array(
		'before' => array(
			'year'  => 1990,
			'month' => 1,
			'day'   => 19,
		),
		'after' => array(
			'year'  => 2017,
			'month' => 5,
			'day'   => 4,
		),
	),
);