EGroupware / egroupware

		foreach ($events as &$event)

		{

			// convert timezone id of event to tzid (iCal id like 'Europe/Berlin')

			if (empty($event['tzid']) && (!$event['tz_id'] || !($event['tzid'] = calendar_timezones::id2tz($event['tz_id']))))

			{

				$event['tzid'] = Api\DateTime::$server_timezone->getName();

			}

			// database returns timestamps as string, convert them to integer

			// to avoid misinterpretation by Api\DateTime as Ymd string

			// (this will fail on 32bit systems for times > 2038!)

			if (isset($event[$ts])) $event[$ts] = $event[$ts] ? $this->date2ts($event[$ts],true) : 0;

		}

		// convert tzid name to integer tz_id, of set user default

		if (empty($event['tzid']) || !($event['tz_id'] = calendar_timezones::tz2id($event['tzid'])))

		{

			$event['tz_id'] = calendar_timezones::tz2id($event['tzid'] = Api\DateTime::$user_timezone->getName());

		}

		// same with the recur exceptions

		if (isset($event['recur_exception']) && is_array($event['recur_exception']))

		{

			if (in_array($egwEvent['id'], $matchingEvents)) continue;

			// convert timezone id of event to tzid (iCal id like 'Europe/Berlin')

			if (!$egwEvent['tz_id'] || !($egwEvent['tzid'] = calendar_timezones::id2tz($egwEvent['tz_id'])))

			{

				$egwEvent['tzid'] = Api\DateTime::$server_timezone->getName();

			}

			if (!isset(self::$tz_cache[$egwEvent['tzid']]))

			{

				self::$tz_cache[$egwEvent['tzid']] = calendar_timezones::DateTimeZone($egwEvent['tzid']);