# File lib/et-orbi.rb, line 432
    def get_x_offset_tzone(str)

      m = str.match(/\A_..-?[0-1]?\d:?(?:[0-5]\d)?(.+)\z/) rescue nil
        #
        # On Windows, the real encoding could be something other than UTF-8,
        # and make the match fail (as in .get_offset_tzone above)

      m ? ::TZInfo::Timezone.get(m[1]) : nil
    end