All Posts admin screen – show time underneath the ‘Date’?
Add this code to functions.php of your active theme: function wpse_posts_list_date_format( $time, $post ) { return $post->post_date; } add_filter( ‘post_date_column_time’, ‘wpse_posts_list_date_format’, 10, 2 ); The callback function receives 4 parameters, but we need only 2.