Show date | WordPress.org

Hi, sorry for my english. I will do my best.

I use a custom loop in the functions.php (for a custom shortcode) to show the last posts from a certain category. With your plugin, I will change the category from a post on certain date – thats working fine.

BUT
How can I show this special date in my loop in the functions.php?
I will show the expire date, which I settting with your plugin….

like

<?php
    $args = array(
    'post_type'      => 'post',
    'category_name'  => 'dogs',
    'posts_per_page' => 2,
);
    $query = new WP_Query( $args );
?>

<?php if ( $query->have_posts() ) : while ( $query-> have_posts() ) : $query-> the_post(); ?>

<p class="date">

<?php SHOW_EXPIRE_DATE ?></p> 

<?php
    endwhile;
 wp_reset_postdata();
endif;  
?>

Do you can help me?
janwill