function testGetDateTimeCached()
{
$tz = new \DateTimeZone('Europe/Amsterdam');
$dt = new \DateTimeImmutable('1985-07-04 01:30:00', $tz);
$dt->setTimeZone($tz);
$elem = $this->vcal->createProperty('DTSTART');
$elem->setDateTime($dt);
$this->assertEquals($elem->getDateTime(), $dt);
}
/**
* String representation of a PeriodLib using ISO8601 Time interval format
*
* @return string
*/
public function __toString()
{
$utc = new DateTimeZone('UTC');
return $this->startDate->setTimeZone($utc)->format(self::DATE_ISO8601) . '/' . $this->endDate->setTimeZone($utc)->format(self::DATE_ISO8601);
}
