BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//hacksw/handcal//NONSGML v1.0//EN
BEGIN:VEVENT
UID:swieto-wiosny.zacheta
DTSTAMP:20260705T194939Z
DTSTART:20260705T194939Z
SUMMARY:Święto wiosny
END:VEVENT
END:VCALENDAR