BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//hacksw/handcal//NONSGML v1.0//EN
BEGIN:VEVENT
DTSTAMP:20231224T230000Z
DTSTART:20231224T230000Z
DTEND:20231224T230000Z
SUMMARY:1. Weihnachtsfeiertag
END:VEVENT
END:VCALENDAR