public DateFormatter::formatDiff($from, $to, $options = array())

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

The value of the format passed to the constructor. File core/lib/Drupal/Component/Datetime/DateTimePlus

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

File core/lib/Drupal/Core/Datetime/DateFormatter.php, line 56 Class

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

public static DateHelper::dayOfWeek($date = NULL)

public DateTimePlus::hasErrors() Detects

protected static Datetime::getHtml5TimeFormat($element)

public static DateHelper::monthNamesAbbrUntranslated()