there are a few solutions for this problem.
this one works slow on slow computers and fast on fast computers.
for a = 1 to number : next a
where number is a number. a big number will cause a big rest.
you can also use timer
t = timer
do
loop until timer > t + interval
where interval is the number of seconds? or milliseconds? to wait. this does not work if you run the program over midnight as timer returns the number of seconds\milliseconds? elapsed since midnight