UCI Academic Calendar 2026‑2027: Important Dates & Deadlines

The UCI Academic Calendar 2026‑2027 brings together every essential date from UCI enrollment deadlines, tuition payment due dates, and course add/drop periods to campus holidays and final exam schedules.

The UC Irvine academic calendar helps students lock in UCI term dates, plan around the UCI exam schedule, and never miss key milestones such as the last day to withdraw without a “W”, Priority Enrollment windows, or the start of Summer Session registration.

The University of California, Irvine operates on a quarter system:

• Fall Quarter (late September to mid‑December; about 10 weeks of instruction + finals week), so if you’re wondering how long a quarter is at UCI, expect roughly 11 weeks total.
• Winter Quarter at UCI runs from early January through mid‑March—about 10 instructional weeks plus a finals week (so roughly 11 weeks total), matching the length of Fall and Spring Quarters.
• Spring Quarter (late March to early June; 10 instructional weeks + finals).
• Summer Session (mid‑June to late September), split into Session I (6 weeks), Session 10WK (10 weeks), and Session II (6 weeks), each with its own add/drop and fee deadlines

Whether you’re mapping out when you can enroll at UCI during Priority Enrollment, checking the last day to drop a course at UCI, budgeting for quarter‐based tuition fees, or planning Summer Session courses, the UCI Academic Calendar 2026‑2027 is your definitive guide for a successful year at UC Irvine.

UCI Academic Calendar Winter 2027

1. The schedule of classes becomes available on Saturday, October 31, 2026.
2. The enrollment window (continuing students) is viewable on Monday, November 9, 2026.
3. Enrollment by window (all students) runs from Monday, November 16, 2026, through Friday, December 4, 2026.
4. Open enrollment runs from Friday, December 4, 2026, through Tuesday, December 15, 2026.
5. The fee payment deadline (to avoid classes being dropped) is Tuesday, December 15, 2026.
6. Waitlist release occurs on Thursday, December 17, 2026, between 5:00 p.m. and 8:00 p.m.
7. The 18-unit enrollment limit is lifted at noon on Friday, December 18, 2026.
8. Late open enrollment runs from Friday, December 18, 2026, through Friday, January 15, 2027.
9. The quarter begins on Monday, January 4, 2027.
10. Winter classes begin on Monday, January 4, 2027.
11. The deadline to add, drop, or change grading options (without dean’s approval) is Friday, January 15, 2027.
12. Waitlists are deactivated at 5:00 p.m. on Friday, January 15, 2027.
13. Martin Luther King, Jr. Day (holiday) is Monday, January 18, 2027.
14. The deadline to submit a part-time study petition (graduate students) is Wednesday, January 20, 2027.
15. The last day to pay fees to avoid loss of student status is Friday, January 22, 2027.
16. The deadline to enroll in sufficient units to avoid loss of student status is Friday, January 22, 2027.
17. The deadline to submit a part-time study petition (undergraduate students) is Friday, January 22, 2027.
18. The deadline to drop a course without receiving a “W” grade (dean’s approval required) is Friday, February 12, 2027.
19. The deadline to change variable units (dean’s approval required) is Friday, February 12, 2027.
20. Presidents’ Day (holiday) is Monday, February 15, 2027.
21. Instruction ends on Friday, March 12, 2027.
22. The deadline to withdraw from a course or term, or to change grading options, is Friday, March 12, 2027.
23. Final examinations are held from Saturday, March 13, 2027, through Friday, March 19, 2027.
24. The quarter ends on Friday, March 19, 2027.
25. UCI Spring Break 2027 runs from Monday, March 22, 2027, through Friday, March 26, 2027.
26. The deadline to submit final grades is Thursday, March 25, 2027.
27. Grades become available in StudentAccess on Thursday, March 25, 2027.
28. Official transcripts are available on Friday, March 26, 2027.
29. Degrees post to transcripts on Friday, April 30, 2027.

UCI Academic Calendar Spring 2026

1. The Schedule of Classes for Spring 2026 will be available on Saturday, February 7, 2026.
2. Presidents’ Day will be observed on Monday, February 16, 2026.
3. Continuing students may view the date and time of their enrollment window for Spring 2026 beginning on Monday, February 16, 2026.
4. Enrollment by window for Spring 2026 (7:00 a.m. start date to 7:00 p.m. end date) will take place from Monday, February 23, 2026, to Wednesday, March 11, 2026.
5. Open enrollment for Spring 2026 will begin on Wednesday, March 11, 2026, and run through Monday, March 16, 2026.
6. The fee payment deadline for Spring 2026, to pay tuition and fees without classes being dropped, is Monday, March 16, 2026.
7. The waitlist release for Spring 2026 will occur on Wednesday, March 18, 2026, between 5:00 p.m. and 8:00 p.m.
8. The second open enrollment period for Spring 2026 will run from Thursday, March 19, 2026, to Friday, April 10, 2026.
9. The 18-unit enrollment limit for Spring 2026 will be lifted at noon on Thursday, March 19, 2026.
10. Spring Quarter 2026 will begin on Wednesday, March 25, 2026.
11. Cesar Chavez Day 2026 will be observed on Friday, March 27, 2026.
12. Instruction for Spring Quarter 2026 will begin on Monday, March 30, 2026.
13. Waitlists for Spring Quarter 2026 will be deactivated at 5:00 p.m. on Friday, April 10, 2026.
14. The last day to add a Spring 2026 course, drop a course without dean’s approval, or change grading options or variable units without dean’s approval is Friday, April 10, 2026, at 5:00 p.m.
15. Graduate students must submit part-time study petitions to the Graduate Division for Spring 2026 by Wednesday, April 15, 2026, at 12:00 noon.
16. The last day to enroll in Spring 2026 courses to avoid loss of student status is Friday, April 17, 2026, at 5:00 p.m.
17. The deadline to pay tuition and fees late or to enroll late for Spring 2026 is Friday, April 17, 2026, at 4:00 p.m.
18. Undergraduate students must submit part-time study petitions to the Registrar for Spring 2026 by Friday, April 17, 2026, at 5:00 p.m.
19. The last day to drop a Spring 2026 course without receiving a “W” grade, with dean’s approval, is Friday, May 8, 2026, at 5:00 p.m.
20. The last day to change variable units for a Spring 2026 course, with dean’s approval, is Friday, May 8, 2026, at 5:00 p.m.
21. Memorial Day will be observed on Monday, May 25, 2026.
22. The last day to change the grading option for a Spring 2026 course, to withdraw from a Spring 2026 course, or to withdraw from the Spring 2026 term with dean’s approval is Friday, June 5, 2026, at 5:00 p.m.
23. Instruction for Spring Quarter 2026 will end on Friday, June 5, 2026.
24. Final examinations for Spring Quarter 2026 will take place from Saturday, June 6, 2026, to Thursday, June 11, 2026.
25. Spring Quarter 2026 will end on Friday, June 12, 2026.
26. Commencement for Spring 2026 will be held from Friday, June 12, 2026, to Monday, June 15, 2026.
27. Graduate hooding for Spring 2026 will be held on Saturday, June 13, 2026.
28. Final grades for Spring Quarter 2026 must be submitted by Thursday, June 18, 2026, at 5:00 p.m.
29. Grades for Spring Quarter 2026 will be available in StudentAccess on Thursday, June 18, 2026, at 10:00 p.m.
30. Official transcripts for Spring Quarter 2026 will be available on Monday, June 22, 2026.
31. Degrees for Spring 2026 will post to transcripts on Friday, July 24, 2026.

UCI Academic Calendar Summer 2026

1. The Schedule of Classes for Summer Sessions 2026 will be available on Sunday, March 1, 2026.
2. Juneteenth will be observed on Friday, June 19, 2026, during Summer Session I.
3. Summer Session I will begin and instruction for Summer Session I will start on Monday, June 22, 2026.
4. The Summer 10-week session will begin, and instruction for the Summer 10-week session will start on Monday, June 22, 2026.
5. Independence Day (observed in the summer session schedule) is noted on Friday, July 3, 2026.
6. Instruction for Summer Session I will end on Monday, July 27, 2026.
7. Final examinations for Summer Session I will take place on Tuesday, July 28, 2026, and Wednesday, July 29, 2026.
8. Summer Session I will end on Wednesday, July 29, 2026.
9. The deadline to submit final grades for Summer Session I is Wednesday, August 5, 2026.
10. Grades for Summer Session I will be available in StudentAccess on Wednesday, August 5, 2026, at 10:00 p.m.
11. Official transcripts for Summer Session I will be available on Friday, August 7, 2026.
12. Instruction for the Summer 10-week session will end on Thursday, August 27, 2026.
13. Final examinations for the Summer 10-week session will be on Friday, August 28, 2026.
14. The Summer 10-week session will end on Friday, August 28, 2026.
15. The deadline to submit final grades for the Summer 10-week session is Monday, September 7, 2026.
16. Grades for the Summer 10-week session will be available in StudentAccess on Monday, September 7, 2026, at 10:00 p.m.
17. Official transcripts for the Summer 10-week session will be available on Wednesday, September 9, 2026.
18. Summer Session II will begin, and instruction for Summer Session II will start on Monday, August 3, 2026.
19. Instruction for Summer Session II will end on Friday, September 4, 2026.
20. Final examinations for Summer Session II will take place on Tuesday, September 8, 2026, and Wednesday, September 9, 2026.
21. Summer Session II will end on Wednesday, September 9, 2026.
22. The deadline to submit final grades for Summer Session II is Tuesday, September 15, 2026.
23. Grades for Summer Session II will be available in StudentAccess on Tuesday, September 15, 2026, at 10:00 p.m.
24. Official transcripts for Summer Session II will be available on Thursday, September 17, 2026.
25. Degree postings for all Summer Sessions (degree awarded date: Wednesday, September 9, 2026) will appear on Friday, October 23, 2026.

For more on the UCI Academic Calendar 2026-2027, visit the University of California, Irvine Calendar website.