BEGIN:VCALENDAR
VERSION:2.0
PRODID:spatie/icalendar-generator
BEGIN:VTIMEZONE
TZID:UTC
BEGIN:STANDARD
DTSTART:20250910T041907
TZOFFSETFROM:+0000
TZOFFSETTO:+0000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
UID:6a24f13bb6682
DTSTAMP:20260607T041907Z
SUMMARY:Tag des offenen Denkmals
DTSTART:20260913T080000Z
DTEND:20260913T160000Z
END:VEVENT
END:VCALENDAR