diff --git a/core/lib/Drupal/Core/Datetime/DrupalDateTime.php b/core/lib/Drupal/Core/Datetime/DrupalDateTime.php
index bd0a364..93a1611 100644
--- a/core/lib/Drupal/Core/Datetime/DrupalDateTime.php
+++ b/core/lib/Drupal/Core/Datetime/DrupalDateTime.php
@@ -21,17 +21,17 @@
  * @param string $format
  * @param string $time
  *
- * @method \DateTime add(\DateInterval $interval)
- * @method static \DateTime createFromFormat($format, $time,  $timezone = NULL, $settings = [])
+ * @method DateTimePlus add(\DateInterval $interval)
+ * @method static DateTimePlus createFromFormat($format, $time, $timezone = NULL, $settings = [])
  * @method static array getLastErrors()
- * @method \DateTime modify(string $modify)
- * @method static \DateTime __set_state(array $array)
- * @method \DateTime setDate(int $year, int $month, int $day)
- * @method \DateTime setISODate(int $year, int $week, int $day = 1)
- * @method \DateTime setTime(int $hour, int $minute, int $second = 0, int $microseconds = 0)
- * @method \DateTime setTimestamp(int $unixtimestamp)
- * @method \DateTime setTimezone(\DateTimeZone $timezone)
- * @method \DateTime sub(\DateInterval $interval)
+ * @method DateTimePlus modify(string $modify)
+ * @method static DateTimePlus __set_state(array $array)
+ * @method DateTimePlus setDate(int $year, int $month, int $day)
+ * @method DateTimePlus setISODate(int $year, int $week, int $day = 1)
+ * @method DateTimePlus setTime(int $hour, int $minute, int $second = 0, int $microseconds = 0)
+ * @method DateTimePlus setTimestamp(int $unixtimestamp)
+ * @method DateTimePlus setTimezone(\DateTimeZone $timezone)
+ * @method DateTimePlus sub(\DateInterval $interval)
  * @method \DateInterval diff($datetime2, $absolute = FALSE)
  * @method int getOffset()
  * @method int getTimestamp()