def to_utc_comparison_s

      per = @zone.period_for_utc(utc)
      off = per.utc_total_offset

      off = off / 3600
      off = off >= 0 ? "+#{off}" : off.to_s

      strftime('%H%M') + off + utc.strftime('(%H%M)')
    end
def to_utc_comparison_s

      per = @zone.period_for_utc(utc)
      off = per.utc_total_offset

      off = off / 3600
      off = off >= 0 ? "+#{off}" : off.to_s

      strftime('%H%M') + off + utc.strftime('(%H%M)')
    end
Debug current time by showing local time / delta / utc time
 for example: "0120-7(0820)"