"Of Clocks and Contracts" is the seventy-sixth episode of The Suite Life of Zack & Cody.
Zack tries to negotiate a better contract for Carey as the Tipton's nightly singer to Mr. Moseby so they could stay at the Tipton. After losing her science tutor, London asks and pays Cody to help her with her project. Nia also wants Cody's help and bribes him with concert tickets to Yo Yo Ma. Cody quits and London and Nia combine their machines, inventing a French Fry maker.
- Giovonnie Samuels as Nia
- Ashley Tisdale as Maddie Fitzpatrick