BEGIN:VCALENDAR VERSION:2.0 PRODID:wwt3-event BEGIN:VEVENT UID:61505d08c2cae DTSTART:20210912T125200Z SEQUENCE:0 TRANSP:OPAQUE SUMMARY:Tag des offenen Denkmals CLASS:PUBLIC DTSTAMP:20210926T134408Z END:VEVENT END:VCALENDAR