Saturday, May 17, 9 a.m and 1:30 p.m.

University of Arizona President Robert N. Shelton will confer degrees upon 4,540 undergraduate, 821 master's/specialist and 296 doctoral students during two commencement ceremonies to be held at McKale Memorial Center.

The keynote speaker is U.S. astronaut Frank Borman, the commander who led the first team of American astronauts to circle the moon.