rvam-post-info.php

<?php
//* Do NOT include the opening php tag

/**
 * Custom Post-Info with Google Rich Snippet support
 * @link: https://gist.github.com/rickrduncan/6494748
 * @author: Rick R. Duncan - www.rvamedia.com
 * @credits: Greg Rickaby & Brad Dalton
 */
remove_action( 'genesis_entry_header', 'genesis_post_info', 12  );
add_action( 'genesis_entry_header', 'rvam_post_info' );
function rvam_post_info() { ?>

    <p class="entry-meta">
		<time class="entry-time" datetime="<?php echo get_the_date( 'c' ); ?>" itemprop="datePublished"><?php echo get_the_date(); ?></time>
 		by 
		<span class="entry-author" itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author">
			<a class="entry-author-link" rel="author" itemprop="url" href="<?php echo get_author_posts_url( get_the_author_meta( 'ID' ) ); ?>">
				<span class="entry-author-name" itemprop="name"><?php the_author_meta( 'display_name' ); ?></span>
			</a>
		</span>
		<span class="entry-comments-link">
			<a href="<?php the_permalink() ?>#comments"><?php comments_number( 'Leave a Comment', '1 Comment', '% Comments' ); ?></a>
		</span>
		<?php // if the post has been modified, display the modified date
		$published = get_the_date( 'F j, Y' );
		$modified = the_modified_date( 'F j, Y', '', '', FALSE );
		$published_compare = get_the_date( 'Y-m-d' );
		$modified_compare = the_modified_date( 'Y-m-d', '', '', FALSE );
		$modified_iso =  the_modified_date( 'c', '', '', FALSE );
			if ( $published_compare < $modified_compare ) {
				echo '<time class="update-time" datetime="'. $modified_iso .'" itemprop="dateModified">(Updated: ' . $modified . ')</time>';
			} ?>
	</p>
<?php }