BEGIN:VCALENDAR
                        VERSION:2.0
                        PRODID:-//hacksw/handcal//NONSGML v1.0//EN
                        BEGIN:VEVENT
                        UID:90fbe2c6e0a66b6df561b971df7d5cf1https://nsu.hu
                        DTSTAMP:20260826T045920
                        DTSTART:TZID=20260826T045920
                        DTEND:TZID=20260826T045920
                        SUMMARY:
                        DESCRIPTION:
                        END:VEVENT
                        END:VCALENDAR