diff --git a/site/archive.html b/site/archive.html
index 27d921f..ffebb98 100644
--- a/site/archive.html
+++ b/site/archive.html
@@ -12,7 +12,7 @@
     <div class="archive-list">
         {% for entry in posts_by_year[year] %}
             <code>
-                <time datetime="{{ entry.date | iso_datetime }}">
+                <time datetime="{{ entry.date | iso_datetime }}" title="{{ entry.date | pretty_datetime}}">
                     {{ entry.date | iso_date }}
                 </time>
             </code>
diff --git a/site/index.html b/site/index.html
index c50c706..452deec 100644
--- a/site/index.html
+++ b/site/index.html
@@ -25,7 +25,7 @@
 </h2>
 <p class="article-meta">
     Published on
-    <time itemprop="datePublished" datetime="{{ latest_post.metadata.date | iso_datetime }}">
+    <time itemprop="datePublished" datetime="{{ latest_post.metadata.date | iso_datetime }}" title="{{ latest_post.metadata.date | pretty_datetime }}">
         {{ latest_post.metadata.date | pretty_date }},
     </time>
     in
diff --git a/site/layout/article.html b/site/layout/article.html
index bec3cf0..f0c9be6 100644
--- a/site/layout/article.html
+++ b/site/layout/article.html
@@ -38,7 +38,7 @@
     </h1>
     <p class="article-meta">
         Published on
-        <time itemprop="datePublished" datetime="{{ metadata.date | iso_datetime }}">
+        <time itemprop="datePublished" datetime="{{ metadata.date | iso_datetime }}" title="{{ metadata.date | pretty_datetime }}">
             {{ metadata.date | pretty_date }},
         </time>
         in
diff --git a/site/layout/tag.html b/site/layout/tag.html
index 9e9a79a..53864e7 100644
--- a/site/layout/tag.html
+++ b/site/layout/tag.html
@@ -12,7 +12,7 @@
     <div class="archive-list">
         {% for entry in posts_by_year[year] %}
             <code>
-                <time datetime="{{ entry.date | iso_datetime }}">
+                <time datetime="{{ entry.date | iso_datetime }}" title="{{ entry.date | pretty_datetime }}">
                     {{ entry.date | iso_date }}
                 </time>
             </code>