BEGIN:VCALENDAR
VERSION:2.0
PRODID:spatie/icalendar-generator
BEGIN:VTIMEZONE
TZID:UTC
BEGIN:STANDARD
DTSTART:20260102T230901
TZOFFSETFROM:+0000
TZOFFSETTO:+0000
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BEGIN:VEVENT
UID:6abc450d9428a
DTSTAMP:20260929T230901Z
SUMMARY:Leonardo da Vinci – Erfindungen erleben
DTSTART:20261118T090000Z
DTEND:20261118T090000Z
END:VEVENT
END:VCALENDAR