BEGIN:VCALENDAR
PRODID:-//Mozilla.org/NONSGML Mozilla Calendar V1.1//EN
VERSION:2.0
BEGIN:VTIMEZONE
TZID:Europe/Paris
X-LIC-LOCATION:Europe/Paris
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:19700329T020000
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:19701025T030000
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
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BEGIN:VEVENT
UID:event
SUMMARY:Event
DTSTART;TZID=Europe/Paris:20130901T190000
DTEND;TZID=Europe/Paris:20130901T200000
END:VEVENT
BEGIN:VTODO
UID:todo
DTSTART;TZID=Europe/Paris:20130901T220000
DURATION:PT1H
SUMMARY:Todo
END:VTODO
END:VCALENDAR