TimeHelper::buildDateTimeFromFormat

private function buildDateTimeFromFormat($format, $formattedDate, $timezone)
{
	$dateTime = false;
	if ($format === 'U')
	{
		if ((int)$formattedDate > 0)
		{
			$dateTime = DateTime::createFromFormat(
				$format,
				$formattedDate
			);
			$dateTime->setTimezone($timezone);
		}
	}
	else
	{
		$dateTime = DateTime::createFromFormat(
			$format,
			$formattedDate,
			$timezone
		);
	}
	return $dateTime === false ? null : $dateTime;
}