BEGIN:VCALENDAR
VERSION:2.0
PRODID:spatie/icalendar-generator
BEGIN:VTIMEZONE
TZID:UTC
BEGIN:STANDARD
DTSTART:20250718T201934
TZOFFSETFROM:+0000
TZOFFSETTO:+0000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
UID:69dea156b17c3
DTSTAMP:20260414T201934Z
SUMMARY:Tag des offenen Denkmals
DTSTART:20260913T090000Z
DTEND:20260913T130000Z
END:VEVENT
END:VCALENDAR