Faculty Handbook: Academic Responsibilities of Faculty
2.6  Office Hours

Faculty members are expected to keep regularly scheduled office (or laboratory) hours each week during which time students may confer with them. The number of hours scheduled should reflect the teaching load and class enrollment of the faculty member. Office hours should be flexible enough to provide reasonable access to students who may have class conflicts. For example, office hours scheduled only for M-W-F, 9:30 to 10:20 a.m. eliminates access for those students who have class during that hour.