Starting and closing dates for each term, scheduled holidays, and other important scheduling information can be found in the academic calendar. All class periods are 160 minutes in length, meeting once a week, unless otherwise specified. There will be 15 weeks of instructional activity for each course. The Thanksgiving week schedule is rearranged to allow all classes to meet 15 sessions during the term. The majority of courses in the M.H.R.M. and M.L.E.R. professional degree programs are offered at 4:30 p.m. or 7:20 p.m. Most courses in the Ph.D. in I.R.H.R. are offered between 9:00 a.m. and 5:00 p.m.