French Open 2009, Are the mens quarter final days played over 3 seperate ones?

Can anyone help me out here !! Ive not really phrased the question correctly, however in a grandslam (french open) When does the #1 and #2 seeded player have there match? And what court is it usually on lol! Any physics out there lol! Basically when would Rafael Nadal play his quarter final match at the French Open and would it be on the Philip Chatrier court or Susan Lenglen ? Thanks :):):) x