diff --git a/core/modules/system/system.admin.inc b/core/modules/system/system.admin.inc
index 1566c80..0358c43 100644
--- a/core/modules/system/system.admin.inc
+++ b/core/modules/system/system.admin.inc
@@ -1831,59 +1831,6 @@ function theme_system_themes_page($variables) {
 }
 
 /**
- * Displays the date format strings overview page.
- */
-function system_date_time_formats() {
-  $header = array(
-    array('data' => t('Machine name'), 'field' => 'machine_name'),
-    array('data' => t('Name'), 'field' => 'name'),
-    array('data' => t('Pattern'), 'field' => 'pattern'),
-    array('data' => t('Operations'))
-  );
-  $rows = array();
-
-  $formats = system_get_date_formats();
-
-  if (!empty($formats)) {
-    foreach ($formats as $date_format_id => $format_info) {
-      // Do not display date formats that are locked.
-      if (empty($format_info['locked'])) {
-        $row = array();
-        $row[] = array('data' => $date_format_id);
-        $row[] = array('data' => $format_info['name']);
-        $row[] = array('data' => format_date(REQUEST_TIME, $date_format_id));
-
-        // Prepare Operational links.
-        $links = array();
-        $links['edit'] = array(
-          'title' => t('Edit'),
-          'href' => 'admin/config/regional/date-time/formats/' . $date_format_id . '/edit',
-        );
-        $links['delete'] = array(
-          'title' => t('Delete'),
-          'href' => 'admin/config/regional/date-time/formats/' . $date_format_id . '/delete',
-        );
-        $row['operations'] = array('data' => array(
-          '#type' => 'operations',
-          '#links' => $links,
-        ));
-
-        $rows[] = $row;
-      }
-    }
-  }
-
-  $build['date_formats_table'] = array(
-    '#theme' => 'table',
-    '#header' => $header,
-    '#rows' => $rows,
-    '#empty' => t('No custom date formats available. <a href="@link">Add date format</a>.', array('@link' => url('admin/config/regional/date-time/formats/add'))),
-  );
-
-  return $build;
-}
-
-/**
  * Allow users to add additional date formats.
  *
  * @param string $date_format_id
diff --git a/core/modules/system/system.module b/core/modules/system/system.module
index 7568ee9..30581a9 100644
--- a/core/modules/system/system.module
+++ b/core/modules/system/system.module
@@ -881,7 +881,7 @@ function system_menu() {
     'title' => 'Date and time formats',
     'description' => 'Configure display format strings for date and time.',
     'route_name' => 'system_date_time_formats',
-    'weights' => -9,
+    'weight' => -9,
   );
   $items['admin/config/regional/date-time/formats/add'] = array(
     'title' => 'Add format',