BEGIN:VCALENDAR VERSION:2.0 PRODID:Secure Systems/ICAL Creator/DE BEGIN:VEVENT UID:6855af1124c25 DTSTAMP:20250620T205721Z DTSTART:20250627T130000 DTEND:20250627T235900 SUMMARY:Letzter Schultag END:VEVENT END:VCALENDAR