diff --git a/core/modules/datetime/src/Plugin/Field/FieldFormatter/DateTimeFormatterBase.php b/core/modules/datetime/src/Plugin/Field/FieldFormatter/DateTimeFormatterBase.php
index c7b66c70824fe06ef4c0b1f1e5fb2c02db6d1653..b45c4e66f871162db31ed732102fe66a8e7c797b 100644
--- a/core/modules/datetime/src/Plugin/Field/FieldFormatter/DateTimeFormatterBase.php
+++ b/core/modules/datetime/src/Plugin/Field/FieldFormatter/DateTimeFormatterBase.php
@@ -231,7 +231,6 @@ protected function buildDateWithIsoAttribute(DrupalDateTime $date) {
     $build = [
       '#theme' => 'time',
       '#text' => $this->formatDate($date),
-      '#html' => FALSE,
       '#attributes' => [
         'datetime' => $iso_date,
       ],