# File lib/rbot/core/utils/utils.rb, line 199
    def Utils.secs_to_string(secs)
      ret = []
      years, secs = secs.divmod SEC_PER_YR
      secs_to_string_case(ret, years, _("year"), _("years")) if years > 0
      months, secs = secs.divmod SEC_PER_MNTH
      secs_to_string_case(ret, months, _("month"), _("months")) if months > 0
      days, secs = secs.divmod SEC_PER_DAY
      secs_to_string_case(ret, days, _("day"), _("days")) if days > 0
      hours, secs = secs.divmod SEC_PER_HR
      secs_to_string_case(ret, hours, _("hour"), _("hours")) if hours > 0
      mins, secs = secs.divmod SEC_PER_MIN
      secs_to_string_case(ret, mins, _("minute"), _("minutes")) if mins > 0
      secs = secs.to_i
      secs_to_string_case(ret, secs, _("second"), _("seconds")) if secs > 0 or ret.empty?
      case ret.length
      when 0
        raise "Empty ret array!"
      when 1
        return ret.to_s
      else
        return [ret[0, ret.length-1].join(", ") , ret[-1]].join(_(" and "))
      end
    end