BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//hacksw/handcal//NONSGML v1.0//EN
BEGIN:VEVENT
UID:proba-otwarta-2.zacheta
DTSTAMP:20260601T035806Z
DTSTART:20260601T035806Z
SUMMARY:Próba otwarta
END:VEVENT
END:VCALENDAR