diff --git a/core/modules/datetime/datetime.module b/core/modules/datetime/datetime.module
index 21ba5d6..91c163c 100644
--- a/core/modules/datetime/datetime.module
+++ b/core/modules/datetime/datetime.module
@@ -30,29 +30,14 @@
  * Implements hook_element_info().
  */
 function datetime_element_info() {
-  $format_type = datetime_default_format_type();
-
-  $date_format = '';
-  $time_format = '';
-  // Date formats cannot be loaded during install or update.
-  if (!defined('MAINTENANCE_MODE')) {
-    if ($date_format_entity = entity_load('date_format', 'html_date')) {
-      $date_format = $date_format_entity->getPattern($format_type);
-    }
-    if ($time_format_entity = entity_load('date_format', 'html_time')) {
-      $time_format = $time_format_entity->getPattern($format_type);
-    }
-  }
   $types['datetime'] = array(
     '#input' => TRUE,
     '#element_validate' => array('datetime_datetime_validate'),
     '#process' => array('datetime_datetime_form_process'),
     '#theme' => 'datetime_form',
     '#theme_wrappers' => array('datetime_wrapper'),
-    '#date_date_format' => $date_format,
     '#date_date_element' => 'date',
     '#date_date_callbacks' => array(),
-    '#date_time_format' => $time_format,
     '#date_time_element' => 'time',
     '#date_time_callbacks' => array(),
     '#date_year_range' => '1900:2050',
@@ -502,6 +487,13 @@ function theme_datetime_wrapper($variables) {
  *   The form element whose value has been processed.
  */
 function datetime_datetime_form_process($element, &$form_state) {
+  $format_type = datetime_default_format_type();
+  if (!isset($element['#date_date_format']) && $date_format_entity = entity_load('date_format', 'html_date')) {
+    $element['#date_date_format'] = $date_format_entity->getPattern($format_type);
+  }
+  if (!isset($element['#date_time_format']) && $time_format_entity = entity_load('date_format', 'html_time')) {
+    $element['#date_time_format'] = $time_format_entity->getPattern($format_type);
+  }
 
   // The value callback has populated the #value array.
   $date = !empty($element['#value']['object']) ? $element['#value']['object'] : NULL;