The academic calendar of Washington University in St. Louis is designed to provide an optimal amount of classroom instruction and examination within a manageable time frame, facilitating our educational mission to promote learning among both students and faculty. Individual schools — particularly our graduate and professional schools — may have varying calendars due to the nature of particular fields of study. Please refer to each school’s website for more information.

Fall Semester 2020

Date Day Description
August 24 Monday Classes begin
September 7 Monday Labor Day holiday
October 10-13 Saturday-Tuesday Fall Break
November 25-29 Wednesday-Sunday Thanksgiving Break
December 4 Friday Last day of classes
December 7-16 Monday-Wednesday Reading and Exams

Spring Semester 2021

Date Day Description
January 18 Monday Martin Luther King Jr. holiday
January 19 Tuesday Classes begin
March 14-20 Sunday-Saturday Spring Break
April 30 Friday Last day of classes
May 3-12 Monday-Wednesday Reading and Exams
May 21 Friday Commencement

Summer Semester 2021

Date Day Description
May 24 Monday First Summer Session begins
May 31 Monday Memorial Day holiday
July 5 Monday Independence Day holiday
August 19 Thursday Last Summer Session ends

Washington University recognizes the individual student’s choice in observing religious holidays that occur during periods when classes are scheduled. Students are encouraged to arrange with their instructors to make up work missed as a result of religious observance, and instructors are asked to make every reasonable effort to accommodate such requests.