BEGIN:VCALENDAR
VERSION:2.0
PRODID:spatie/icalendar-generator
BEGIN:VTIMEZONE
TZID:UTC
BEGIN:STANDARD
DTSTART:20250909T221958
TZOFFSETFROM:+0000
TZOFFSETTO:+0000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
UID:6a249d0e58ed4
DTSTAMP:20260606T221958Z
SUMMARY:Unsere Klasse
DTSTART:20260708T180000Z
DTEND:20260708T180000Z
END:VEVENT
END:VCALENDAR