message listTimeZonesResponse
parts 
response
element workcal:listTimeZonesResponse
used by 
Operation listTimeZones in PortType WorkCalService
source 
<wsdl:message name="listTimeZonesResponse">
  <wsdl:part name="response" element="workcal:listTimeZonesResponse"/>
</wsdl:message>

WSDL documentation generated by XMLSpy WSDL Editor http://www.altova.com/xmlspy