Answer: 6 weeks
Col. Pickering: "Do you realize what you've got to try and teach this poor girl within six weeks? You've got to teach her to walk,
talk, address a duke, a lord, a bishop, an ambassador. It's absolutely impo--Higgins, I'm trying to tell you that I want to call off the bet. I know you're a stubborn man, but so am I. This experiment is over, and nothing, short of an order from the King,
could force me to recant. Now, if you'll excuse me. You understand, Higgins? It's over! Higgins. Higgins!"