diff --git a/wp-content/themes/twentytwelve/content-image.php b/wp-content/themes/twentytwelve/content-image.php
index 956d76041b..aee3869d94 100644
--- a/wp-content/themes/twentytwelve/content-image.php
+++ b/wp-content/themes/twentytwelve/content-image.php
@@ -16,7 +16,7 @@
 		<footer class="entry-meta">
 			<a href="<?php the_permalink(); ?>" title="<?php echo esc_attr( sprintf( __( 'Permalink to %s', 'twentytwelve' ), the_title_attribute( 'echo=0' ) ) ); ?>" rel="bookmark">
 				<h1><?php the_title(); ?></h1>
-				<h2><time class="entry-date" datetime="<?php echo esc_attr( get_the_date( 'c' ) ); ?>" pubdate><?php echo get_the_date(); ?></time></h2>
+				<h2><time class="entry-date" datetime="<?php echo esc_attr( get_the_date( 'c' ) ); ?>"><?php echo get_the_date(); ?></time></h2>
 			</a>
 			<?php if ( comments_open() ) : ?>
 			<div class="comments-link">
diff --git a/wp-content/themes/twentytwelve/functions.php b/wp-content/themes/twentytwelve/functions.php
index ada0de9968..6f8757707d 100644
--- a/wp-content/themes/twentytwelve/functions.php
+++ b/wp-content/themes/twentytwelve/functions.php
@@ -288,7 +288,7 @@ function twentytwelve_comment( $comment, $args, $depth ) {
 						// If current post author is also comment author, make it known visually.
 						( $comment->user_id === $post->post_author ) ? '<span> ' . __( 'Post author', 'twentytwelve' ) . '</span>' : ''
 					);
-					printf( '<a href="%1$s"><time pubdate datetime="%2$s">%3$s</time></a>',
+					printf( '<a href="%1$s"><time datetime="%2$s">%3$s</time></a>',
 						esc_url( get_comment_link( $comment->comment_ID ) ),
 						get_comment_time( 'c' ),
 						/* translators: 1: date, 2: time */
@@ -331,7 +331,7 @@ function twentytwelve_entry_meta() {
 	// Translators: used between list items, there is a space after the comma.
 	$tag_list = get_the_tag_list( '', __( ', ', 'twentytwelve' ) );
 
-	$date = sprintf( '<a href="%1$s" title="%2$s" rel="bookmark"><time class="entry-date" datetime="%3$s" pubdate>%4$s</time></a>',
+	$date = sprintf( '<a href="%1$s" title="%2$s" rel="bookmark"><time class="entry-date" datetime="%3$s">%4$s</time></a>',
 		esc_url( get_permalink() ),
 		esc_attr( get_the_time() ),
 		esc_attr( get_the_date( 'c' ) ),
diff --git a/wp-content/themes/twentytwelve/image.php b/wp-content/themes/twentytwelve/image.php
index c84cc510cc..b2fcb428ac 100644
--- a/wp-content/themes/twentytwelve/image.php
+++ b/wp-content/themes/twentytwelve/image.php
@@ -23,7 +23,7 @@ get_header(); ?>
 						<footer class="entry-meta">
 							<?php
 								$metadata = wp_get_attachment_metadata();
-								printf( __( '<span class="meta-prep meta-prep-entry-date">Published </span> <span class="entry-date"><time class="entry-date" datetime="%1$s" pubdate>%2$s</time></span> at <a href="%3$s" title="Link to full-size image">%4$s &times; %5$s</a> in <a href="%6$s" title="Return to %7$s" rel="gallery">%8$s</a>.', 'twentytwelve' ),
+								printf( __( '<span class="meta-prep meta-prep-entry-date">Published </span> <span class="entry-date"><time class="entry-date" datetime="%1$s">%2$s</time></span> at <a href="%3$s" title="Link to full-size image">%4$s &times; %5$s</a> in <a href="%6$s" title="Return to %7$s" rel="gallery">%8$s</a>.', 'twentytwelve' ),
 									esc_attr( get_the_date( 'c' ) ),
 									esc_html( get_the_date() ),
 									esc_url( wp_get_attachment_url() ),