diff --git a/layouts/_default/content.html b/layouts/_default/content.html
index d6baf1c..a8859ee 100644
--- a/layouts/_default/content.html
+++ b/layouts/_default/content.html
@@ -3,7 +3,7 @@
 <article class="blog-post">
   <header>
     <h2 class="blog-post-title" dir="auto"><a href="{{ .Permalink }}">{{ .Title | markdownify }}</a></h2>
-    <p class="blog-post-meta"><time datetime="{{ .Date.Format "2006-01-02T15:04:05Z07:00" }}">{{ .Date.Format $dateFormat }}</time> {{ i18n "authoredBy" }} {{ .Params.author | default .Site.Params.author }}{{ if or (.Params.categories) (.Params.tags) }} {{ i18n "postedIn" }} {{ partial "meta-terms.html" . }}{{ end }}</p>
+    <p class="blog-post-meta"><time {{ .Date.Format "2006-01-02T15:04:05Z07:00" | printf "datetime=%q" | safeHTMLAttr }}>{{ .Date.Format $dateFormat }}</time> {{ i18n "authoredBy" }} {{ .Params.author | default .Site.Params.author }}{{ if or (.Params.categories) (.Params.tags) }} {{ i18n "postedIn" }} {{ partial "meta-terms.html" . }}{{ end }}</p>
   </header>
   {{ .Content }}
 </article> <!-- /.blog-post -->
diff --git a/layouts/_default/single.html b/layouts/_default/single.html
index eabda5c..21a215d 100644
--- a/layouts/_default/single.html
+++ b/layouts/_default/single.html
@@ -56,7 +56,7 @@
 <article class="blog-post">
   <header>
     <h2 class="blog-post-title" dir="auto"><a href="{{ .Permalink }}">{{ .Title | markdownify }}</a></h2>
-    <p class="blog-post-meta"><time datetime="{{ .Date.Format "2006-01-02T15:04:05Z07:00" }}">{{ .Date.Format $dateFormat }}</time> {{ i18n "authoredBy" }} {{ .Params.author | default .Site.Params.author }}{{ if or (.Params.categories) (.Params.tags) }} {{ i18n "postedIn" }} {{ partial "meta-terms.html" . }}{{ end }}</p>
+    <p class="blog-post-meta"><time {{ .Date.Format "2006-01-02T15:04:05Z07:00" | printf "datetime=%q" | safeHTMLAttr }}>{{ .Date.Format $dateFormat }}</time> {{ i18n "authoredBy" }} {{ .Params.author | default .Site.Params.author }}{{ if or (.Params.categories) (.Params.tags) }} {{ i18n "postedIn" }} {{ partial "meta-terms.html" . }}{{ end }}</p>
   </header>
   {{ .Content }}
 
diff --git a/layouts/_default/summary.html b/layouts/_default/summary.html
index e9ce921..970e8ad 100644
--- a/layouts/_default/summary.html
+++ b/layouts/_default/summary.html
@@ -3,7 +3,7 @@
 <article class="blog-post">
   <header>
     <h2 class="blog-post-title" dir="auto"><a href="{{ .Permalink }}">{{ .Title | markdownify }}</a></h2>
-    <p class="blog-post-meta"><time datetime="{{ .Date.Format "2006-01-02T15:04:05Z07:00" }}">{{ .Date.Format $dateFormat }}</time> {{ i18n "authoredBy" }} {{ .Params.author | default .Site.Params.author }}{{ if or (.Params.categories) (.Params.tags) }} {{ i18n "postedIn" }} {{ partial "meta-terms.html" . }}{{ end }}</p>
+    <p class="blog-post-meta"><time {{ .Date.Format "2006-01-02T15:04:05Z07:00" | printf "datetime=%q" | safeHTMLAttr }}>{{ .Date.Format $dateFormat }}</time> {{ i18n "authoredBy" }} {{ .Params.author | default .Site.Params.author }}{{ if or (.Params.categories) (.Params.tags) }} {{ i18n "postedIn" }} {{ partial "meta-terms.html" . }}{{ end }}</p>
   </header>
   {{ .Summary }}
   <a href='{{ .Permalink }}'>{{ i18n "readMore" }}</a>