Countdown Timer Bypass

I am looking for someone who can write a script or by any means necessary bypass or run down the timer on websites such as [login to view URL] , [login to view URL], or footlocker.com. These websites release items on their sites at certain times when the timer hits 0. I want to be able to run down the timer to get myself a head start on adding the item to my cart and checking out instead of waiting just like everyone else and getting told the item has sold out by the time I attempt to add it to my cart.