Get post between dates in wordpress

$args = array(
'posts_per_page'   => -1,
'order'            => 'DESC',
'post_type'        => 'post',
'post_status'      => 'publish',
'cat'          => 59,
'date_query'  => array(
array(
'after'     => array(
'year'    => 2015,
'month'   => 02,
'day' => 06,
'hour' => 10,
'minute'  => 28,
'second'  => 55,
),
'before'    => array(
'year'    => 2015,
'month'   => 02,
'day' => 09,
'hour' => 15,
'minute'  => 24,
'second'  => 01,
),
),
),
);

$query_result = new WP_Query($args);