diff --git a/core/modules/datetime/src/Plugin/Field/FieldFormatter/DateTimeFormatterBase.php b/core/modules/datetime/src/Plugin/Field/FieldFormatter/DateTimeFormatterBase.php
index 272cb9ea1ec1c033c533e5a05c7777340ad5972b..93ef2a260a28735ecc901fb35f6f678f26f5ed41 100644
--- a/core/modules/datetime/src/Plugin/Field/FieldFormatter/DateTimeFormatterBase.php
+++ b/core/modules/datetime/src/Plugin/Field/FieldFormatter/DateTimeFormatterBase.php
@@ -232,7 +232,6 @@ protected function buildDateWithIsoAttribute(DrupalDateTime $date) {
     $build = [
       '#theme' => 'time',
       '#text' => $this->formatDate($date),
-      '#html' => FALSE,
       '#attributes' => [
         'datetime' => $iso_date,
       ],