timer

min = min + 1;
if min == 60 then min=0;
hr = hr + 1;
end
if hr == 13 then
hr = 1;
end
if hr == 24 then
hr = 12;
end
if hr == 24 and
min == 0 then
dot = "am"
end
if hr == 12 and
min == 0 then
dot = "pm"
end