BEGIN:VCALENDAR
VERSION:2.0
PRODID:spatie/icalendar-generator
BEGIN:VTIMEZONE
TZID:UTC
BEGIN:STANDARD
DTSTART:20251211T015855
TZOFFSETFROM:+0000
TZOFFSETTO:+0000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
UID:6a9e1a5fb0fec
DTSTAMP:20260907T015855Z
SUMMARY:Tag des offenen Denkmals
DTSTART:20260913T080000Z
DTEND:20260913T160000Z
END:VEVENT
END:VCALENDAR