The dates in this calendar apply to students registered for courses that meet during our seven-week session. Please note, we have removed deadlines that are no longer applicable toward your fully online summer experience.
High school students: see the Secondary School Program calendar or the Harvard Pre-College Program calendar for dates that apply to you.
Seven-Week Session: June 21–August 6, 2021
| Course registration begins Register early for best choice of courses. You must pay your balance in full by the payment deadline. If you do not, you risk being dropped from all courses and waitlists. |
Tuesday, March 2, 9 am ET |
| Full payment deadline Pay your balance in full by this date. If you do not, you risk being dropped from all courses and waitlists. Registration with immediate full payment remains open through June 17. |
Monday, May 17 |
| Accessibility services request deadline | Monday, May 17 |
| Memorial Day Offices closed |
Monday, May 31 |
| English proficiency requirement deadline | Thursday, June 10 |
| Course registration deadline Last day to register for summer courses. Late registration is not permitted after this date. |
Thursday, June 17 |
| Course change period For registered students only |
Friday, June 18-Wednesday, June 23 |
| Classes begin Begin attending and participating in online classes from the first class meeting. |
Monday, June 21 |
| Course changes deadline | Wednesday, June 23 |
| Course drop and withdrawal deadlines: | |
| Last day to drop courses for 100% tuition refund | Wednesday, June 23 |
| Last day to drop courses for 50% tuition refund | Wednesday, June 30 |
| Last day to withdraw from courses for no tuition refund Course on record with WD (withdrawal) grade |
Friday, July 23 |
| Independence Day (observed) No classes; offices closed |
Monday, July 5 |
| Final exams and last class meetings | Monday, August 2–Friday, August 6 |
| Session ends | Friday, August 6 |
| Grades available online | Tuesday, August 17 |
| Last day to make up EXT grades Instructor may set earlier due date. |
Friday, September 3 |
Three-Week Session I: June 21-July 8, 2021
| Course registration begins Register early for best choice of courses. |
Tuesday, March 2, 9 am ET |
| Full payment deadline Pay your balance in full by this date. If you do not, you risk being dropped from all courses and waitlists. Registration with immediate full payment remains open through June 17. |
Monday, May 17 |
| Accessibility services request deadline | Monday, May 17 |
| Memorial Day Offices closed |
Monday, May 31 |
| English proficiency requirement deadline | Thursday, June 10 |
| Course registration deadline Last day to register for summer courses. Late registration is not permitted after this date. |
Thursday, June 17 |
| Course change period For registered students only |
Friday, June 18-Wednesday June 23 |
| Classes begin Begin attending and participating in online classes from the first class meeting. |
Monday, June 21 |
| Course changes deadline | Wednesday, June 23 |
| Course drop and withdrawal deadlines: | |
| Last day to drop courses for 100% tuition refund | Wednesday, June 23 |
| Last day to withdraw from courses for no tuition refund Course on record with WD (withdrawal) grade |
Thursday, July 1 |
| Independence Day (observed) No classes; offices closed |
Monday, July 5 |
| Final exams and last class meetings | Thursday, July 8 |
| Session ends | Thursday, July 8 |
| Grades available online | Tuesday, July 20 |
| Last day to make up EXT grades Instructor may set earlier due date. |
Friday, July 23 |
Three-Week Session II: July 12– July 29, 2021
| Course registration begins Register early for best choice of courses. |
Tuesday, March 2, 9 am ET |
| Full payment deadline Pay your balance in full by this date. If you do not, you risk being dropped from all courses and waitlists. Registration with immediate full payment remains open through June 17. |
Monday, May 17 |
| Accessibility services request deadline | Monday, May 17 |
| Memorial Day Offices closed |
Monday, May 31 |
| English proficiency requirement deadline | Thursday, June 10 |
| Course registration deadline Last day to register for summer courses. Late registration is not permitted after this date. |
Thursday, June 17 |
| Course change period For registered students only |
Friday, June 18-Wednesday, July 14 |
| Classes begin Begin attending and participating in online classes from the first class meeting. |
Monday, July 12 |
| Course changes deadline | Wednesday, July 14 |
| Course drop and withdrawal deadlines: | |
| Last day to drop courses for 100% tuition refund | Wednesday, July 14 |
| Last day to withdraw from courses for no tuition refund Course on record with WD (withdrawal) grade |
Thursday, July 22 |
| Independence Day (observed) No classes; offices closed |
Monday, July 5 |
| Final exams and last class meetings | Thursday, July 29 |
| Session ends | Thursday, July 29 |
| Grades available online | Tuesday, August 10 |
| Last day to make up EXT grades Instructor may set earlier due date. |
Friday, August 13 |
All deadlines are the dates by which materials must be submitted online or received at 51 Brattle Street.
Administrative offices are closed on University holidays, weekends, June 1, and July 2.
