diff --git a/FWCreateCalendar/FWCreateCalendar.vbproj b/FWCreateCalendar/FWCreateCalendar.vbproj
index c88dd17..aa37e14 100644
--- a/FWCreateCalendar/FWCreateCalendar.vbproj
+++ b/FWCreateCalendar/FWCreateCalendar.vbproj
@@ -102,14 +102,23 @@
     <Reference Include="DevExpress.XtraSpreadsheet.v24.1, Version=24.1.3.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a, processorArchitecture=MSIL" />
     <Reference Include="DevExpress.XtraTreeList.v24.1, Version=24.1.3.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" />
     <Reference Include="DevExpress.XtraTreeMap.v24.1, Version=24.1.3.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" />
+    <Reference Include="Ical.Net, Version=4.3.1.0, Culture=neutral, PublicKeyToken=65c0446cd019ea53, processorArchitecture=MSIL">
+      <HintPath>..\packages\Ical.Net.4.3.1\lib\netstandard2.0\Ical.Net.dll</HintPath>
+    </Reference>
     <Reference Include="Newtonsoft.Json, Version=13.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
       <HintPath>..\packages\Newtonsoft.Json.13.0.1\lib\net45\Newtonsoft.Json.dll</HintPath>
     </Reference>
+    <Reference Include="NodaTime, Version=3.2.0.0, Culture=neutral, PublicKeyToken=4226afe0d9b296d1, processorArchitecture=MSIL">
+      <HintPath>..\packages\NodaTime.3.2.0\lib\netstandard2.0\NodaTime.dll</HintPath>
+    </Reference>
     <Reference Include="System" />
     <Reference Include="System.ComponentModel.DataAnnotations" />
     <Reference Include="System.Data" />
     <Reference Include="System.Deployment" />
     <Reference Include="System.Drawing" />
+    <Reference Include="System.Runtime.CompilerServices.Unsafe, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\packages\System.Runtime.CompilerServices.Unsafe.6.0.0\lib\net461\System.Runtime.CompilerServices.Unsafe.dll</HintPath>
+    </Reference>
     <Reference Include="System.Windows.Forms" />
     <Reference Include="System.Xml" />
     <Reference Include="System.Core" />
diff --git a/FWCreateCalendar/frmMain.Designer.vb b/FWCreateCalendar/frmMain.Designer.vb
index 6404709..c2928bc 100644
--- a/FWCreateCalendar/frmMain.Designer.vb
+++ b/FWCreateCalendar/frmMain.Designer.vb
@@ -364,7 +364,7 @@ Partial Class frmMain
         Me.schedStorage.Appointments.Labels.CreateNewLabel(8, "Birthday", "&Birthday", System.Drawing.Color.FromArgb(CType(CType(224, Byte), Integer), CType(CType(207, Byte), Integer), CType(CType(233, Byte), Integer)))
         Me.schedStorage.Appointments.Labels.CreateNewLabel(9, "Anniversary", "&Anniversary", System.Drawing.Color.FromArgb(CType(CType(141, Byte), Integer), CType(CType(233, Byte), Integer), CType(CType(223, Byte), Integer)))
         Me.schedStorage.Appointments.Labels.CreateNewLabel(10, "Phone Call", "Phone &Call", System.Drawing.Color.FromArgb(CType(CType(255, Byte), Integer), CType(CType(247, Byte), Integer), CType(CType(165, Byte), Integer)))
-        Me.schedStorage.TimeZoneId = "UTC"
+        Me.schedStorage.TimeZoneId = "E. Europe Standard Time"
         '
         'SFD
         '
diff --git a/FWCreateCalendar/frmMain.vb b/FWCreateCalendar/frmMain.vb
index 2005d99..5df7417 100644
--- a/FWCreateCalendar/frmMain.vb
+++ b/FWCreateCalendar/frmMain.vb
@@ -9,6 +9,8 @@ Imports DevExpress.XtraGrid.Views.Base
 Imports DevExpress.XtraGrid.Views.Grid
 Imports DevExpress.XtraScheduler
 Imports DevExpress.XtraScheduler.iCalendar
+Imports Ical.Net.DataTypes
+Imports Ical.Net.Serialization
 Imports Microsoft.Office.Interop
 Public Class frmMain
 
@@ -260,7 +262,8 @@ Public Class frmMain
             AddHandler exporter.AppointmentExporting, AddressOf Exporter_AppointmentExporting
             Dim failed As Boolean
             Try
-                exporter.Export(SFD.FileName)
+                'exporter.Export(SFD.FileName)
+                IcalNetTest(SFD.FileName)
             Catch ex As Exception
                 failed = True
             End Try
@@ -268,6 +271,27 @@ Public Class frmMain
         End If
     End Sub
 
+    Private Sub IcalNetTest(OutputFile As String)
+        Dim calendar As New Ical.Net.Calendar
+        'calendar.AddTimeZone(New Ical.Net.CalendarComponents.VTimeZone("Europe/Berlin"))
+        'calendar.AddTimeZone(New Ical.Net.CalendarComponents.VTimeZone(General.Settings.DefaultTimezoneId))
+        For Each evt As EventEntry In ds.Where(Function(e) e.IsInvalid = False AndAlso e.Exclude = False)
+            calendar.Events.Add(New Ical.Net.CalendarComponents.CalendarEvent With {
+                .Start = New CalDateTime(evt.StartDate),
+                .[End] = New CalDateTime(evt.EndDate),
+                .IsAllDay = evt.AllDay,
+                .Location = evt.Location,
+                .Summary = evt.Subject '.Categories = {evt.Category} Kategorien machen beim Import in Joomla JEvents probleme
+                })
+        Next
+
+        Dim serializer As New CalendarSerializer
+        Using sw As New StreamWriter(OutputFile, False, System.Text.Encoding.UTF8)
+            sw.Write(serializer.SerializeToString(calendar))
+        End Using
+
+    End Sub
+
     Private Sub Exporter_AppointmentExporting(sender As Object, e As AppointmentExportingEventArgs)
         'e.Appointment.TimeZoneId = sched.OptionsBehavior.ClientTimeZoneId
         'e.Appointment.TimeZoneId = General.Settings.DefaultTimezoneId
diff --git a/FWCreateCalendar/packages.config b/FWCreateCalendar/packages.config
index bc2a97e..876c411 100644
--- a/FWCreateCalendar/packages.config
+++ b/FWCreateCalendar/packages.config
@@ -1,4 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
+  <package id="Ical.Net" version="4.3.1" targetFramework="net48" />
   <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net48" />
+  <package id="NodaTime" version="3.2.0" targetFramework="net48" />
+  <package id="System.Runtime.CompilerServices.Unsafe" version="6.0.0" targetFramework="net48" />
 </packages>
\ No newline at end of file