 Also housed in McKeldin Library are several computer labs, a copy shop, and Footnotes Café.McKeldin Library remains open 24 hours a day most of the Fall and Spring semesters, in order to provide late night study hours for university students; A UMD (College Park) identification card is necessary to gain access to the building during the study hours.Note the library doors close on Fridays at 8pm, re-opening on Saturday from 10am to 9pm, until re-opening at 11am Sunday morning.