diff --git a/layouts/datengarten/section.ics b/layouts/datengarten/section.ics
index 1fc5d04..c572328 100644
--- a/layouts/datengarten/section.ics
+++ b/layouts/datengarten/section.ics
@@ -3,6 +3,40 @@ VERSION:2.0
 PRODID:-//cccb//datengarten calendar//EN
 CALSCALE:GREGORIAN
 METHOD:PUBLISH
+BEGIN:VTIMEZONE
+TZID:Europe/Berlin
+X-LIC-LOCATION:Europe/Berlin
+BEGIN:DAYLIGHT
+TZOFFSETFROM:+0100
+TZOFFSETTO:+0200
+TZNAME:CEST
+DTSTART:19700329T020000
+RRULE:FREQ=YEARLY;INTERVAL=1;BYDAY=-1SU;BYMONTH=3
+END:DAYLIGHT
+BEGIN:STANDARD
+TZOFFSETFROM:+0200
+TZOFFSETTO:+0100
+TZNAME:CET
+DTSTART:19701025T030000
+RRULE:FREQ=YEARLY;INTERVAL=1;BYDAY=-1SU;BYMONTH=10
+END:STANDARD
+END:VTIMEZONE
+BEGIN:VEVENT
+ORGANIZER;CN="CCCB":mailto:datengarten@berlin.ccc.de
+SUMMARY:Datengarten
+UID: 0@datengarten.berlin.ccc.de
+SEQUENCE:0
+STATUS:CONFIRMED
+DTSTAMP:20180508T200000Z
+DTSTART;TZID=Europe/Berlin:20180508T200000
+DTEND;TZID=Europe/Berlin:20180508T220000
+RRULE:FREQ=MONTHLY;BYSETPOS=2;BYDAY=TU;INTERVAL=1
+{{range .Pages -}}
+EXDATE;TZID=Europe/Berlin:{{dateFormat "20060102T150405" .Params.event.start}}
+{{end -}}
+LOCATION:{{with .Params.location}}{{.}}{{else}}CCCB{{end}}
+URL:{{.Permalink}}
+END:VEVENT
 {{range .Pages -}}
 BEGIN:VEVENT
 ORGANIZER;CN="CCCB":mailto:datengarten@berlin.ccc.de