$args = array(
'post_type' => 'post',
'post_status' => 'inherit',
'orderby'     => 'modified',
'order'       => 'DESC',
'posts_per_page' => -1,

);

$today = getdate();

$args = array(
'post_type' => 'post',
'post_status' => 'inherit',
'orderby'     => 'modified',
'order'       => 'DESC',
'posts_per_page' => -1,
'date_query' => array(
    array(
        'year'  => $today['year'],
        'month' => $today['mon'],
        'day'   => $today['mday'],
    )));