public DrupalDateTime::format($format, $settings = array())

public static Datetime::valueCallback(&$element, $input, FormStateInterface

public DrupalDateTime::__construct($time = 'now', $timezone = NULL

public DateFormatterInterface::formatInterval($interval

public static DateTimePlus::datePad($value, $size = 2)

The prepared timezone object used to construct this date. File core/lib/Drupal/Component/Datetime/DateTimePlus

public DateTimePlus::getErrors() Gets

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

protected DateTimePlus::prepareFormat($format)

Defines Gregorian Calendar date values. Lots of helpful functions for use in massaging dates, specific to the Gregorian calendar system. The