diff --git a/layouts/partials/meta/date-updated.html b/layouts/partials/meta/date-updated.html
index 73bb4e14..949a1723 100644
--- a/layouts/partials/meta/date-updated.html
+++ b/layouts/partials/meta/date-updated.html
@@ -1,4 +1,4 @@
-<time datetime="{{ . }}">
+<time datetime="{{ . | time.Format "2006-01-02T15:04:05-07:00" }}">
   {{- i18n "article.date_updated" (dict "Date" (partial "functions/date.html" .)) -}}
 </time>
 {{- /* Trim EOF */ -}}
diff --git a/layouts/partials/meta/date.html b/layouts/partials/meta/date.html
index 1f9c19d6..1454d0b5 100644
--- a/layouts/partials/meta/date.html
+++ b/layouts/partials/meta/date.html
@@ -1,4 +1,4 @@
-<time datetime="{{ . }}">
+<time datetime="{{ . | time.Format "2006-01-02T15:04:05-07:00" }}">
   {{- i18n "article.date" (dict "Date" (partial "functions/date.html" .)) -}}
 </time>
 {{- /* Trim EOF */ -}}