BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//TYPO3/NONSGML Calendarize//EN
BEGIN:VEVENT
UID:calendarize-15
DTSTART:20191220T190000Z
DTEND:20191220T210000Z
SUMMARY:
DESCRIPTION:
LOCATION:
END:VEVENT

END:VCALENDAR