diff --git a/backend/service/db/dbEvents.go b/backend/service/db/dbEvents.go
index c398a07..e79c529 100644
--- a/backend/service/db/dbEvents.go
+++ b/backend/service/db/dbEvents.go
@@ -148,9 +148,9 @@ func (e Events) EmitICal() goics.Componenter {
 		s.SetType("VEVENT")
 		timeEnd, _ := time.Parse(layout, event.End)
 		timeStart, _ := time.Parse(layout, event.Start)
-		k, v := goics.FormatDateTimeField("DTEND", timeEnd)
+		k, v := goics.FormatDateTime("DTEND;TZID=Europe/Berlin", timeEnd)
 		s.AddProperty(k, v)
-		k, v = goics.FormatDateTimeField("DTSTART", timeStart)
+		k, v = goics.FormatDateTime("DTSTART;TZID=Europe/Berlin", timeStart)
 		s.AddProperty(k, v)
 		s.AddProperty("SUMMARY", event.Name)
 		s.AddProperty("DESCRIPTION", "Notizen: "+event.Notes+"\n Prof: "+event.Prof)