Kallyas, last modified date: components/blog/default-single-modern/single-details-date.php

single-details-date.php

<?php if(! defined('ABSPATH')){ return; }
/**
 * Details date
 */
?>

<span class="kl-blog-post-date updated" <?php echo WpkPageHelper::zn_schema_markup('post_time'); ?>>
	<?php
	echo "Posted on ";
	$date_format = zget_option( 'blog_date_format', 'blog_options', false, 'l, d F Y' );
		the_time( $date_format );
	?>
	<span class="infSep kl-blog-post-details-sep"> | </span>
	<?php $u_time = get_the_time('U');
	$u_modified_time = get_the_modified_time('U');
		if ($u_modified_time >= $u_time + 86400) {
		echo "Last updated on ";
		the_modified_time('j.n.Y');
	echo ", "; }
	else {echo "";} ?>
	<?php
	/** Original
		$date_format = zget_option( 'blog_date_format', 'blog_options', false, 'l, d F Y' );
		the_time( $date_format );
	**/
	?>
</span>
<span class="infSep kl-blog-post-details-sep"> | </span>