code: def Parse(self, stat, knowledge_base):
      
      _ = knowledge_base
      value = stat.registry_data.GetValue()
      result = ZONE_LIST.get(value.strip())
      if not result:
        yield rdfvalue.RDFString("Unknown (%s)" % value.strip())
  
      yield rdfvalue.RDFString(result)
docs: Convert the timezone to Olson format.