BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//hacksw/handcal//NONSGML v1.0//EN
BEGIN:VEVENT
DTSTAMP:20180102T100000Z
DTSTART:20180102T100000Z
DTEND:20180102T130000Z
SUMMARY:80. Geburtstag Hermann Bartels
END:VEVENT
END:VCALENDAR