BEGIN:VCALENDAR
VERSION:2.0
PRODID:spatie/icalendar-generator
BEGIN:VTIMEZONE
TZID:UTC
BEGIN:STANDARD
DTSTART:20250909T171203
TZOFFSETFROM:+0000
TZOFFSETTO:+0000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
UID:6a2454e3d7f33
DTSTAMP:20260606T171203Z
SUMMARY:Unsere Klasse
DTSTART:20260707T180000Z
DTEND:20260707T180000Z
END:VEVENT
END:VCALENDAR