BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//wp-events-plugin.com//6.6.4.4.2//EN
TZID:Europe/Berlin
X-WR-TIMEZONE:Europe/Berlin
BEGIN:VEVENT
UID:0-1@optonet-jena.de
DTSTART;TZID=Europe/Berlin:20181117T100000
DTEND;TZID=Europe/Berlin:20181117T170000
DTSTAMP:20181101T150856Z
URL:https://optonet-jena.de/events/test/
SUMMARY:test
DESCRIPTION:
END:VEVENT
BEGIN:VTIMEZONE
TZID:Europe/Berlin
X-LIC-LOCATION:Europe/Berlin
BEGIN:STANDARD
DTSTART:20181028T020000
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
END:STANDARD
END:VTIMEZONE
END:VCALENDAR