University Access Classes Open to the Public ☰ Fall 2020 Aug 22-Dec 15 Winter 2021 Dec 21-Jan 22 Spring 2021 Jan 25-May 14 Summer 2021 June 1-Aug 24 There are problems with the action. Please try again. Winter 2021 Calendar Date(s) FULLY ONLINE COURSES October 5 Online Registration Begins December 21 First Day of Class December 25, 2020 – January 3, 2021 Holiday; campus closed. Online classes remain in session during campus closure for holidays. The CSUN library is available electronically. January 4, 2021 Last day to add without permission. Last day to drop and receive a refund January 5, 2021 Last day to drop a class using the online, self-service registration system; Last day to add a class using the online, self-service registration system; a permission number is required. January 22, 2021 Last Day of Classes Questions?Visit Knowledge Center -or- Call (818) 677-2504