The CUNY academic calendar provides a unified view of university dates. The academic calendar alters some course meeting dates to account for holidays. As an example, turning a Tuesday into Friday, to make up for classes missed as a result of a Friday holiday. If an unexpected schedule change occurs, or if students cannot attend the rescheduled meeting date due to another holiday conflict, then instructors will make up the lost class time, either through on-line instruction, by rescheduling the class or through alternative instruction and assignments. Faculty are required to document how they make up the time.