K.M.
With my kids, and the numerous kids that I have nannied I have always given them until the count of "10" to get to timeout. If they got out of timeout before the timer went off, or I let them out, then they got a spanking. Also, if they didn't get to timeout by 10 they got a spanking and we started over. It only took about 2 spankings before even the most difficult of children would go and stay in timeout without much difficulty. A side note, I always adjusted my counting to the situation - if they were down the street and trying to get to timeout in time, they could make it by 10. If they were down the hall and kicking and screaming on the way to timeout, I would speed up the counting, and they wouldn't make it in time. Good luck