public DateFormatter::formatTimeDiffUntil($timestamp, $options = array())

public DateFormatInterface::isLocked()

public static DateHelper::monthNamesUntranslated()

public Datetime::getInfo() Returns

public static DateHelper::dayOfWeekName($date = NULL, $abbr = TRUE)

public static DateTimePlus::createFromArray(array $date_parts, $timezone

public static DateHelper::monthNames($required = FALSE)

The prepared format, if provided. File core/lib/Drupal/Component/Datetime/DateTimePlus.php, line 81