Internal Clock HELP

a cascade of counters, something like this:

process -- clked on 27MHz
if Hz_count /= 27000000-1 then
    Hz_count <= Hz_count +1;
else
     Hz_count <= 0;
     if seconds_count /= 59 then
             seconds_count <= seconds_count + 1;
     else
             seconds_count <= 0;
             if minutes_count /= 59 then
                   minutes_count <= minutes_count + 1;
              else
                   minute_count <= 0;
                   if hours_count /= 23 then
                          hours_count <= hours_count + 1;
                   else
                          hours_count <= 0;
                          if days_count /= final_day then
                                 days_count <= days_count + 1;
                          else
                                  days_count <= 1;
                          end if;
                  end if;
            end if;
     end if;
end if;