College of Sciences Events Calendar Save the Date Sunday: July 04, 2021 Independence Day: Campus Closed 12:00 am – 11:59 pm Monday: August 23, 2021 First Day of Classes 12:00 am – 11:59 pm SDSU Wednesday: September 01, 2021 Last Day to Drop Classes 11:59 pm – 11:59 pm Monday: September 06, 2021 Labor Day: Campus Closed 12:00 am – 11:59 pm Monday: October 11, 2021 Indigenous Peoples Day 12:00 am – 11:59 pm
