Index: AXimpl/AxToAdminUtils.cls.xml
===================================================================
diff -u -r47077 -r47164
--- AXimpl/AxToAdminUtils.cls.xml	(.../AxToAdminUtils.cls.xml)	(revision 47077)
+++ AXimpl/AxToAdminUtils.cls.xml	(.../AxToAdminUtils.cls.xml)	(revision 47164)
@@ -48,22 +48,19 @@
 
 <Method name="ConvertZuluTimeStampToDate">
 <ClassMethod>1</ClassMethod>
-<FormalSpec>ZuluTimeStamp:%TimeStamp</FormalSpec>
+<FormalSpec>ZuluTimeStampStringFormaat:%TimeStamp</FormalSpec>
 <ReturnType>%Date</ReturnType>
-<Implementation><![CDATA[
-	#dim TimeZoneDifference As %Integer = ##class(TECH.DateTime).TimezoneDiff()
-	#dim CacheTimeStamp As %TimeStamp = ##class(TECH.DateTime).TimeStampBereken(ZuluTimeStamp, TimeZoneDifference, ##class(TECH.enu.DatePart).Seconde())
-	Quit ##class(TECH.DateTime).TimestampToDate(CacheTimeStamp)
+<Implementation><![CDATA[	Quit ##class(TECH.DateTime).TimestampToDate(..ConvertZuluTimeStampToTimeStamp(ZuluTimeStampStringFormaat))
 ]]></Implementation>
 </Method>
 
 <Method name="ConvertZuluTimeStampToTimeStamp">
 <ClassMethod>1</ClassMethod>
-<FormalSpec>ZuluTimeStamp:%TimeStamp</FormalSpec>
+<FormalSpec>ZuluTimeStampStringFormaat:%TimeStamp</FormalSpec>
 <ReturnType>%TimeStamp</ReturnType>
 <Implementation><![CDATA[
-	#dim TimeZoneDifference As %Integer = ##class(TECH.DateTime).TimezoneDiff()
-	Quit ##class(TECH.DateTime).TimeStampBereken(ZuluTimeStamp, TimeZoneDifference, ##class(TECH.enu.DatePart).Seconde())
+	#dim TimeStampHorologFormaat As %String = $ZDATETIMEH(ZuluTimeStampStringFormaat,3,3)
+	Quit $ZDATETIME($ZDATETIMEH(TimeStampHorologFormaat,-3),3)
 ]]></Implementation>
 </Method>
 
Index: vhUnitTest/AXimpl/AxToAdminUtils/Test.cls.xml
===================================================================
diff -u -r45082 -r47164
--- vhUnitTest/AXimpl/AxToAdminUtils/Test.cls.xml	(.../Test.cls.xml)	(revision 45082)
+++ vhUnitTest/AXimpl/AxToAdminUtils/Test.cls.xml	(.../Test.cls.xml)	(revision 47164)
@@ -50,6 +50,21 @@
 	Do $$$AssertEquals(ConvertedLeverancierID,"L||0","")
 ]]></Implementation>
 </Method>
+
+<Method name="Test: Convert ZuluTimeStamp voor zomertijd">
+<Implementation><![CDATA[
+	Set Converter = ##class(AXimpl.AxToAdminUtils).%New()
+	set a = $SYSTEM.SQL.TOTIMESTAMP("20160105125915","YYYYMMDDHHMISS")
+	Do $$$AssertEquals(Converter.ConvertZuluTimeStampToTimeStamp(##class(TECH.DateTime).HorologToTimeStamp("64482,43844")),"2017-07-18 14:10:44")
+]]></Implementation>
+</Method>
+
+<Method name="Test: Convert ZuluTimeStamp voor wintertijd">
+<Implementation><![CDATA[
+	Set Converter = ##class(AXimpl.AxToAdminUtils).%New()
+	Do $$$AssertEquals(Converter.ConvertZuluTimeStampToTimeStamp(##class(TECH.DateTime).HorologToTimeStamp("64586,37393")),"2017-10-30 11:23:13")
+]]></Implementation>
+</Method>
 </Class>