BEGIN:VCALENDAR
VERSION:2.0
PRODID:spatie/icalendar-generator
BEGIN:VTIMEZONE
TZID:UTC
BEGIN:STANDARD
DTSTART:20250914T045733
TZOFFSETFROM:+0000
TZOFFSETTO:+0000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
UID:6a2a403da50fb
DTSTAMP:20260611T045733Z
SUMMARY:Tag des offenen Denkmals
DTSTART:20260913T080000Z
DTEND:20260913T160000Z
END:VEVENT
END:VCALENDAR