Featured Terms times Use figures except for noon and midnight. Use a colon to separate hours from minutes: 11 a.m., 1 p.m., 3:30 p.m., 11 a.m. to 3 p.m., 3 to 5:15 p.m. Avoid redundancy: Don’t write 10 a.m. this morning, 10 p.m. tonight. Carnahan Quadrangle Formerly South Quadrangle, renamed for the late Gov. Mel Carnahan in 2003. The area is bordered by Conley Ave. on the north, Rollins St. on the south, Cornell Hall and the Reynolds Alumni Center on the west, and Missouri Ave. on the east.