the shadow of the departing secretary of state, hillary clinton. Who took to the stage at a farewell global town hall today, answering questions from around the world. And joking, she's ready to catch up, quote, on 20 years of sleep deprivation. "Nightline" anchor cynthia McFADDEN ASKED HER ABOUT HER Next chapter and that first day off. Reporter: Saturday morning -- yes. Reporter: What happens? Well, I hope I get to sleep in. You know, I'm thinking about that, because it will be the first time in many years when I've got no office to go to, no schedule to keep, no work to do. That will probably last a few days and then I will be up and going with my new projects. And you can see all of hillary clinton's last interview as secretary of state, it is WITH cynthia McFadden tonight on "nightline" at their new time, 12:35 a.M. Eastern.