41         foreach (['json', 'xml'] as $format) {
46                     'format' => $format,
53                     'format' => $format,
80             return $visitor->visitSimpleString($date->format($this->getFormat($type)), $type);
83         $format = $this->getFormat($type);
84         if ('U' === $format) {
85             return $visitor->visitInteger((int) $date->format($format), $type);
88         return $visitor->visitString($date->format($this->getFormat($type)), $type);
122         $iso8601DateIntervalString = $this->format($date);
225         $format = $this->getDeserializationFormat($type);
228             $datetime = \DateTimeImmutable::createFromFormat($format, (string) $data, $timezone);
230             $datetime = \DateTime::createFromFormat($format, (string) $data, $timezone);
234 … throw new RuntimeException(sprintf('Invalid datetime "%s", expected format %s.', $data, $format));
237         if ('U' === $format) {
278     public function format(\DateInterval $dateInterval): string  function in JMS\\Serializer\\Handler\\DateHandler
280         $format = 'P';
283             $format .= $dateInterval->y . 'Y';
287             $format .= $dateInterval->m . 'M';
291             $format .= $dateInterval->d . 'D';
295             $format .= 'T';
299             $format .= $dateInterval->h . 'H';
303             $format .= $dateInterval->i . 'M';
307             $format .= $dateInterval->s . 'S';
310         if ('P' === $format) {
311             $format = 'P0DT0S';
314         return $format;