Adelphi University Academic Calendar 2026-2027: Vital Dates

Adelphi University Academic Calendar 2026-2027 is your essential guide to important dates and deadlines such as class start dates, add/drop deadlines, breaks, and final exams for undergraduate and graduate programs.

Planning your educational journey at Adelphi University? Whether you’re a prospective student aiming for admission deadlines, a current student needing to track course registration or exam schedules, or faculty/staff coordinating academic operations, understanding the Adelphi Academic Calendar 2026-2027 is essential.

Adelphi’s academic year is approximately 30 weeks of instruction across its two primary 15-week semesters: Fall and Spring.

In addition to these main terms, the university offers a concentrated Intersession (about three weeks) and flexible Summer Sessions, providing diverse learning opportunities.

This guide compiles all the important dates of Adelphi University, ensuring you stay organized and on track for a successful academic year.

Adelphi University Academic Calendar Spring 2027

1. The first day of classes for Spring 2027 is Monday, January 25, 2027.
2. The last day to add a course for Spring 2027 is Friday, February 5, 2027.
3. The last day to add an independent study or internship for Spring 2027 is Friday, February 5, 2027.
4. The last day to change a course grading method for Spring 2027 is Friday, February 5, 2027.
5. The last day to change a course section for Spring 2027 is Friday, February 5, 2027.
6. The last day to drop a course for Spring 2027 is Friday, February 5, 2027.
7. Open planning for Summer and Fall 2027 begins on Monday, March 8, 2027.
8. Adelphi Spring Break 2027 runs from Monday, March 15, 2027, through Sunday, March 21, 2027, and there are no classes.
9. The first day of registration for Summer 2027 is Monday, March 22, 2027.
10. The first day of graduate registration for Fall 2027 is Wednesday, March 31, 2027.
11. The first day of undergraduate registration for Fall 2027 is Friday, April 2, 2027.
12. The Scholarship and Creative Works Conference is Tuesday, April 20, 2027, and there are no classes.
13. The last day to withdraw from a course for Spring 2027 is Monday, April 27, 2027.
14. Make-up/Study day with no classes is Tuesday, May 12, 2027.
15. Final Exams run from Wednesday, May 13, 2027, through Tuesday, May 19, 2027.
16. Doctoral Hooding takes place on Tuesday, May 19, 2027.
17. Commencement for Spring 2027 is Wednesday, May 20, 2027.

Adelphi University Academic Calendar Summer 2026

Check Adelphi’s Summer 2026 sessions: key deadlines for Summer I, Full Summer, and Summer II courses with holiday breaks.

1. The first day of classes for Summer 2026 is Tuesday, May 26, 2026.
2. The last day to add a course for Summer Session 1 is Friday, May 29, 2026.
3. The last day to add an independent study or internship for Summer Session 1 is Friday, May 29, 2026.
4. The last day to change a course grading method for Summer Session 1 is Friday, May 29, 2026.
5. The last day to change a course section for Summer Session 1 is Friday, May 29, 2026.
6. The last day to drop a course for Summer Session 1 is Friday, May 29, 2026.
7. The last day to add a course for the full Summer Session is Wednesday, June 3, 2026.
8. The last day to add an independent study or internship for the full Summer Session is Wednesday, June 3, 2026.
9. The last day to change a course grading method for the full Summer Session is Wednesday, June 3, 2026.
10. The last day to change a course section for the full Summer Session is Wednesday, June 3, 2026.
11. The last day to drop a course for the full Summer Session is Wednesday, June 3, 2026.
12. Juneteenth is observed on Friday, June 19, 2026, and there are no classes.
13. The last day to withdraw from a course for Summer Session 1 is Tuesday, June 23, 2026.
14. Conversion Day is Tuesday, June 30, 2026, and Friday classes meet on this day.
15. The last day of classes for Summer Session 1 is Tuesday, June 30, 2026.
16. Independence Day break runs from Wednesday, July 1, 2026, through Sunday, July 5, 2026, and there are no classes.
17. The first day of classes for Summer Session 2 is Monday, July 6, 2026.
18. The last day to add a course for Summer Session 2 is Thursday, July 9, 2026.
19. The last day to add an independent study or internship for Summer Session 2 is Thursday, July 9, 2026.
20. The last day to change a course grading method for Summer Session 2 is Thursday, July 9, 2026.
21. The last day to change a course section for Summer Session 2 is Thursday, July 9, 2026.
22. The last day to drop a course for Summer Session 2 is Thursday, July 9, 2026.
23. The last day to withdraw from a course for the full Summer Session is Thursday, July 24, 2026.
24. The last day to withdraw from a course for Summer Session 2 is Thursday, July 31, 2026.
25. The last day of classes for Summer 2026 is Saturday, August 9, 2026.

This calendar does not apply to Adelphi International (AUI) General English Language, Adelphi Special Sessions courses, or Online Programs for Sport Management, Nutrition, Health Informatics, Social Sciences, and other Online programs in the College of Professional and Continuing Studies.