diff --git a/core/modules/aggregator/aggregator.theme.inc b/core/modules/aggregator/aggregator.theme.inc
index 605025c..aade2ca 100644
--- a/core/modules/aggregator/aggregator.theme.inc
+++ b/core/modules/aggregator/aggregator.theme.inc
@@ -39,6 +39,7 @@ function template_preprocess_aggregator_item(&$variables) {
     $variables['source_date'] = format_date($item->getPostedTime(), 'medium');
   }
 
+  $variables['posted_time'] = $item->getPostedTime();
   $variables['attributes']['class'][] = 'feed-item';
 }
 
diff --git a/core/modules/aggregator/templates/aggregator-item.html.twig b/core/modules/aggregator/templates/aggregator-item.html.twig
index 8c23106..24e22fb 100644
--- a/core/modules/aggregator/templates/aggregator-item.html.twig
+++ b/core/modules/aggregator/templates/aggregator-item.html.twig
@@ -8,29 +8,41 @@
  * - feed_title: Title of the feed item.
  * - source_url: Link to the local source section.
  * - source_title: Title of the remote source.
- * - source_date: Date the feed was posted on the remote source.
+ * - source_date: Date the feed was posted. Formatted as N days ago.
+ * - posted_time: Date the feed was posted.
  * - content: Feed item content.
+ * - categories: Categories assigned to the feed.
  *
  * @see template_preprocess_aggregator_item()
  *
  * @ingroup themeable
  */
 #}
-<div{{ attributes }}>
-  <h3 class="feed-item-title">
-    <a href="{{ feed_url }}">{{ feed_title }}</a>
-  </h3>
+<article class="feed-item {{ attributes.class }}">
+  <h2{{ title_attributes }}>
+    <a href="{{ feed_url }}" rel="bookmark">{{ feed_title }}</a>
+  </h2>
+  {{ content }}
+  <footer>
+    <time datetime="{{ createdtime|date("Y-m-d H:i") }}">
+      {{ source_date }}
+    </time>
 
-  <div class="feed-item-meta">
     {% if source_url %}
-      <a href="{{ source_url }}" class="feed-item-source">{{ source_title }}</a> -
+      by <a href="{{ source_url }}">{{ source_title }}</a>
     {% endif %}
-    <span class="feed-item-date">{{ source_date }}</span>
-  </div>
 
-  {% if content %}
-    <div class="feed-item-body">
-      {{ content }}
-    </div>
-  {% endif %}
-</div>
+    {% if categories %}
+      <section>
+        <h3>{{ 'Categories'|t }}: </h3>
+        {% for item in categories %}
+          {% if loop.last %}
+            <a href="{{ item.href }}">{{ item.title }}</a>.
+          {% else %}
+            <a href="{{ item.href }}">{{ item.title }}</a>,
+          {% endif %}
+        {% endfor %}
+      </section>
+    {% endif %}
+  </footer>
+</article>