From Specter and Leahy today:

Dear Colleagues:
In order to give advance notice so that you can make your travel plans, the Judiciary Committee hearings on the nomination of Judge John G. Roberts, Jr. for the Supreme Court will begin on Tuesday, September 6th, at 1:30 P.M., in the Caucus Room in 325 Russell. At that time, we will proceed with ten minute opening statements by Committee members to be followed by the oath to be taken by Judge Roberts and his opening statement.
On Wednesday, September 7th, the Committee will reconvene at 9:30 AM in Room 216 of the Hart Senate Office Building for the opening round of questions, which will be thirty minutes in duration. The second round of questioning will be twenty minutes in length, and the duration of such subsequent rounds as are desired will be determined as necessary. The balance of the hearings will be held in Hart 216, except for the closed session, which will take place in our own Committee hearing room.
We look forward to seeing you on September 6th.