Initial Drupal 11 with DDEV setup

web/core/modules/datetime/datetime.module

@@ -0,0 +1,40 @@
+<?php
+
+/**
+ * @file
+ * Holds datetime views field data helper for deprecation.
+ */
+
+use Drupal\field\FieldStorageConfigInterface;
+
+/**
+ * Provides Views integration for any datetime-based fields.
+ *
+ * Overrides the default Views data for datetime-based fields, adding datetime
+ * views plugins. Modules defining new datetime-based fields may use this
+ * function to simplify Views integration.
+ *
+ * @param \Drupal\field\FieldStorageConfigInterface $field_storage
+ *   The field storage config entity.
+ * @param array $data
+ *   Field view data or
+ *   FieldViewsDataProvider::defaultFieldImplementation($field_storage) if
+ *   empty.
+ * @param string $column_name
+ *   The schema column name with the datetime value.
+ *
+ * @return array
+ *   The array of field views data with the datetime plugin.
+ *
+ * @see datetime_field_views_data()
+ * @see datetime_range_field_views_data()
+ *
+ * @deprecated in drupal:11.2.0 and is removed from drupal:12.0.0. Use
+ * \Drupal::service('datetime.views_helper')
+ * ->buildViewsData($field_storage, $data, $column_name); instead.
+ * @see https://www.drupal.org/node/3489502
+ */
+function datetime_type_field_views_data_helper(FieldStorageConfigInterface $field_storage, array $data, $column_name) {
+  @trigger_error('datetime_type_field_views_data_helper() is deprecated in drupal:11.2.0 and is removed from drupal:12.0.0. Use \Drupal::service(\'datetime.views_helper\')->buildViewsData($field_storage, $data, $column_name). See https://www.drupal.org/node/3489502', E_USER_DEPRECATED);
+  return \Drupal::service('datetime.views_helper')->buildViewsData($field_storage, $data, $column_name);
+}