I just figured out how to do that.
Is there a way to change the date format on the Manage page to Month/Day/Year instead of the default, which is Year/Month/Day?
WPAdverts is using the WP date format set in wp-admin / Settings panel.
That’s not the case for us. In the back end wp-admin / Settings panel we have it set to say “March 12, 2018”.
However, in the plugin it shows 2018/3/12.
Add in your theme functions.php file the code below
add_filter( "adverts_sh_manage_date", "my_adverts_sh_manage_date", 10, 2 );
function my_adverts_sh_manage_date( $date, $post ) {
$expires = get_post_meta( $post->ID, "_expiration_date", true );
return date_i18n( __( 'm/d/Y' ), $expires );
}