I'm no expert with PikaTimer, but it's been helping me hit my delays. I find that it's best if you listen to the little dinging noises rather than look at the screen as it counts down. The first countdown ends with four dings 3,2,1,0 and you hit start exactly as 0 rings. And the second set of dings goes 10,9,8...all the way to zero and again you hit A the last time to get you in front of the daycare man.