BEGIN:VCALENDAR
BEGIN:VEVENT
DTSTAMP:20260530T100217Z
UID:163f4b0a-c7c2-4a0e-b54f-8f1729b93c7d
SUMMARY:Friseur
DTSTART;TZID=Europe/Berlin:20260711T103000
DTEND;TZID=Europe/Berlin:20260711T113000
BEGIN:VALARM
TRIGGER:-PT10M
ACTION:DISPLAY
DESCRIPTION:Friseur 
END:VALARM
CLASS:PUBLIC
END:VEVENT
END:VCALENDAR