# File lib/et-orbi.rb, line 485
    def centos_tz

      path = '/etc/sysconfig/clock'

      File.open(path, 'rb') do |f|
        until f.eof?
          if m = f.readline.match(/ZONE="([^"]+)"/); return m[1]; end
        end
      end if File.exist?(path)

      nil
    rescue; nil; end