DateTimePlus::format

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

public function format($format, $settings = array()) {

  // If there were construction errors, we can't format the date.
  if ($this->hasErrors()) {
    return;
  }

  // Format the date and catch errors.
  try {
    // Clone the date/time object so we can change the time zone without
    // disturbing the value stored in the object.
    $dateTimeObject = clone $this->dateTimeObject;
    if (isset($settings['timezone'])) {
      $dateTimeObject->setTimezone(new \DateTimeZone($settings['timezone']));
    }
    $value = $dateTimeObject->format($format);
  }
  catch (\Exception $e) {
    $this->errors[] = $e->getMessage();
  }

  return $value;
}