NUS Academic Calendar 2025-2026: Important Dates

The NUS Academic Calendar 2025–2026 is your one-stop reference for all NUS important dates, from semester start and end dates and course registration windows, to census deadlines, reading weeks, and exam periods.

Whether you’re searching for “NUS semester dates 2025,” “NUS term dates download,” or “NUS academic calendar PDF,” this authoritative guide ensures you never miss a critical deadline.

The National University of Singapore features two main semesters and a Special Term:

• Semester 1 runs from early August through early December, complete with Orientation Week, a mid-semester Reading Week, and final exams.
• Semester 2 kicks off in January, includes a winter Reading Week, and concludes in May, followed by the Special Term (Part A and Part B) for accelerated or make-up courses.

Bookmark the NUS Academic Calendar for the NUS AY 25/26 to stay ahead of key events like course add/drop deadlines, tuition payment due dates, public holiday closures, and the last day to withdraw without penalty, making your academic planning smoother and stress-free.

NUS Academic Calendar Semester 1 2025

The following are the important dates and deadlines for Semester 1 of 2025, as outlined in the NUS Academic Calendar 2025–2026.

1. Orientation for Semester 1 is from Monday, August 4, 2025, to Saturday, August 9, 2025.
2. National Day is observed on Saturday, August 9, 2025, and there are no classes on this day.
3. The first week of the instructional period for Semester 1 is from Monday, August 11, 2025, to Friday, August 15, 2025.
4. Mini Semester 1A begins on Monday, August 11, 2025, and ends on Saturday, December 6, 2025.
5. The “W” grade period for Mini Semester 1A is from Monday, August 25, 2025, to Sunday, August 31, 2025.
6. The “F” grade period for Mini Semester 1A begins on Monday, September 1, 2025.
7. The second week of the instructional period for Semester 1 is from Monday, August 18, 2025, to Friday, August 22, 2025.
8. The third week of the instructional period for Semester 1 is from Monday, August 25, 2025, to Friday, August 29, 2025.
9. The “W” grade period for Semester 1 is from Monday, August 25, 2025, to Sunday, September 28, 2025.
10. The “F” grade period for Semester 1 begins on Monday, September 29, 2025.
11. The fourth week of the instructional period for Semester 1 is from Monday, September 1, 2025, to Friday, September 5, 2025.
12. The fifth week of the instructional period for Semester 1 is from Monday, September 8, 2025, to Friday, September 12, 2025.
13. The sixth week of the instructional period for Semester 1 is from Monday, September 15, 2025, to Friday, September 19, 2025.
14. Recess Week for Semester 1 is from Saturday, September 20, 2025, to Sunday, September 28, 2025.
15. The seventh week of the instructional period for Semester 1 is from Monday, September 29, 2025, to Saturday, October 4, 2025.
16. The eighth week of the instructional period for Semester 1 is from Monday, October 6, 2025, to Friday, October 10, 2025.
17. The ninth week of the instructional period for Semester 1 is from Monday, October 13, 2025, to Friday, October 17, 2025.
18. Deepavali is observed on Monday, October 20, 2025, and there are no classes on this day.
19. Mini Semester 1B begins on Monday, October 20, 2025, and ends on Saturday, December 13, 2025.
20. The “W” grade period for Mini Semester 1B is from Monday, October 20, 2025, to Sunday, October 26, 2025.
21. The “F” grade period for Mini Semester 1B begins on Monday, October 27, 2025.
22. NUS Well-Being Day is observed on Tuesday, October 21, 2025, and there are no classes on this day.
23. The tenth week of the instructional period for Semester 1 is from Monday, October 20, 2025, to Friday, October 24, 2025.
24. The eleventh week of the instructional period for Semester 1 is from Monday, October 27, 2025, to Friday, October 31, 2025.
25. The twelfth week of the instructional period for Semester 1 is from Monday, November 3, 2025, to Friday, November 7, 2025.
26. The thirteenth week of the instructional period for Semester 1 is from Monday, November 10, 2025, to Friday, November 14, 2025.
27. Reading Week for Semester 1 is from Saturday, November 15, 2025, to Friday, November 21, 2025.
28. The Online Student Feedback Exercise for Semester 1 is from Monday, October 27, 2025, to Friday, November 21, 2025.
29. The Online Student Feedback Exercise for Mini Semester 1B is from Monday, October 27, 2025, to Friday, November 21, 2025.
30. The examination period for Semester 1 is from Saturday, November 22, 2025, to Saturday, December 6, 2025.
31. Christmas Day is observed on Thursday, December 25, 2025, and there are no classes on this day.
32. The vacation period following Semester 1 is from Sunday, December 7, 2025, to Sunday, January 11, 2026.

NUS Academic Calendar Semester 2 2026

The following are the important dates and deadlines for Semester 2 of 2026, as outlined in the NUS Academic Calendar 2025–2026.

1. The first week of the instructional period for Semester 2 is from Monday, January 12, 2026, to Friday, January 16, 2026.
2. The second week of the instructional period for Semester 2 is from Monday, January 19, 2026, to Friday, January 23, 2026.
3. The third week of the instructional period for Semester 2 is from Monday, January 26, 2026, to Friday, January 30, 2026.
4. The “W” grade period for Semester 2 is from Monday, January 26, 2026, to Sunday, March 1, 2026.
5. The “F” grade period for Semester 2 begins on Monday, March 2, 2026.
6. Mini Semester 2A begins on Monday, January 26, 2026, and ends on Saturday, March 21, 2026.
7. The “W” grade period for Mini Semester 2A is from Monday, January 26, 2026, to Sunday, February 1, 2026.
8. The “F” grade period for Mini Semester 2A begins on Monday, February 2, 2026.
9. The fourth week of the instructional period for Semester 2 is from Monday, February 2, 2026, to Friday, February 6, 2026.
10. The fifth week of the instructional period for Semester 2 is from Monday, February 9, 2026, to Friday, February 13, 2026.
11. The sixth week of the instructional period for Semester 2 is from Monday, February 16, 2026, to Friday, February 20, 2026.
12. Chinese New Year is observed on Tuesday, February 17, 2026, and Wednesday, February 18, 2026, and there are no classes on these days.
13. Recess Week for Semester 2 is from Saturday, February 21, 2026, to Sunday, March 1, 2026.
14. The seventh week of the instructional period for Semester 2 is from Monday, March 2, 2026, to Saturday, March 7, 2026.
15. The eighth week of the instructional period for Semester 2 is from Monday, March 9, 2026, to Friday, March 13, 2026.
16. The ninth week of the instructional period for Semester 2 is from Monday, March 16, 2026, to Friday, March 20, 2026.
17. Hari Raya Puasa is observed on Saturday, March 21, 2026, and there are no classes on this day.
18. Mini Semester 2B begins on Monday, March 23, 2026, and ends on Saturday, May 16, 2026.
19. The “W” grade period for Mini Semester 2B is from Monday, March 23, 2026, to Sunday, March 29, 2026.
20. The “F” grade period for Mini Semester 2B begins on Monday, March 30, 2026.
21. The tenth week of the instructional period for Semester 2 is from Monday, March 23, 2026, to Friday, March 27, 2026.
22. The eleventh week of the instructional period for Semester 2 is from Monday, March 30, 2026, to Friday, April 3, 2026.
23. Good Friday is observed on Friday, April 3, 2026, and there are no classes on this day.
24. The twelfth week of the instructional period for Semester 2 is from Monday, April 6, 2026, to Friday, April 10, 2026.
25. The thirteenth week of the instructional period for Semester 2 is from Monday, April 13, 2026, to Friday, April 17, 2026.
26. Reading Week for Semester 2 is from Saturday, April 18, 2026, to Friday, April 24, 2026.
27. The Online Student Feedback Exercise for Semester 2 is from Monday, March 27, 2026, to Friday, April 24, 2026.
28. The Online Student Feedback Exercise for Mini Semester 2A is from Monday, March 27, 2026, to Friday, April 24, 2026.
29. The Online Student Feedback Exercise for Mini Semester 2B is from Monday, March 27, 2026, to Friday, April 24, 2026.
30. The examination period for Semester 2 is from Saturday, April 25, 2026, to Saturday, May 9, 2026.
31. Labour Day is observed on Friday, May 1, 2026, and there are no classes on this day.
32. Hari Raya Haji is observed on Wednesday, May 27, 2026, and there are no classes on this day.
33. Vesak Day is observed on Sunday, May 31, 2026, with the public holiday observed on Monday, June 1, 2026, and there are no classes on this day.
34. The vacation period following Semester 2 is from Sunday, May 10, 2026, to Sunday, August 2, 2026.

NUS Academic Calendar Special Term 2026

The following are the important dates and deadlines for the Special Term of 2026, as outlined in the NUS Academic Calendar 2025–2026.

1. Special Term (Part 1) begins on Monday, May 11, 2026, and ends on Saturday, June 20, 2026.
2. The “W” grade period for Special Term (Part 1) is from Monday, May 25, 2026, to Sunday, May 31, 2026.
3. The “F” grade period for Special Term (Part 1) begins on Monday, June 1, 2026.
4. The Online Student Feedback Exercise for Special Term (Part 1) is from Monday, June 12, 2026, to Sunday, June 18, 2026.
5. Special Term (Part 2) begins on Monday, June 22, 2026, and ends on Saturday, August 1, 2026.
6. The “W” grade period for Special Term (Part 2) is from Monday, July 6, 2026, to Sunday, July 12, 2026.
7. The “F” grade period for Special Term (Part 2) begins on Monday, July 13, 2026.
8. The Online Student Feedback Exercise for Special Term (Part 2) is from Monday, July 24, 2026, to Sunday, July 30, 2026.
9. Commencement ceremonies will be held on a date to be announced, with updates available on the NUS Commencement website.

For more on the NUS Academic Calendar 2025-2026, visit the National University of Singapore Calendar website.