'Convert the timezone to Olson format.'

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))
