BEGIN:VCALENDAR
VERSION:2.0
PRODID:spatie/icalendar-generator
BEGIN:VTIMEZONE
TZID:UTC
BEGIN:STANDARD
DTSTART:20260103T164526
TZOFFSETFROM:+0000
TZOFFSETTO:+0000
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BEGIN:VEVENT
UID:6abd3ca6629c5
DTSTAMP:20260930T164526Z
SUMMARY:Leonardo da Vinci – Erfindungen erleben
DTSTART:20261211T090000Z
DTEND:20261211T090000Z
END:VEVENT
END:VCALENDAR