No, in this evenings speech on TV President Bush did not announce a timetable or support for a timetable for withdrawal. However...
Speaking during the Clinton andministration's involvement in Eastern Europe:
Houston Chronicle April 9, 1999: "Victory means exit strategy, and it's important for the president to explain to us what the exit strategy is."
Scripps Howard -- Feb. 9, 1999 "I would strongly urge that if there are U.S. troops involved, they be under U.S. command or NATO command," Bush said Thursday. "I think it's also important for the president to lay out a timetable as to how long they will be involved and when they will be withdrawn."
On his own war in Iraq:
White House press release June 24, 2005: "There's not going to be any timetables. I mean, I've told this to the Prime Minister. We are there to complete a mission, and it's an important mission. A democratic Iraq is in the interest of the United States of America, and it's in the interest of laying the foundation for peace. And if that's the mission, then why would you -- why would you say to the enemy, you know, here's a timetable, just go ahead and wait us out? It doesn't make any sense to have a timetable. You know, if you give a timetable, you're -- you're conceding too much to the enemy.
Thanks to Think Progress for the leads.