Academic Calendar
Note that although we refer to seasonal academic quarters for reference, UCSC Extension doesn't schedule courses on a strict quarter system. Courses may begin in any week during the quarter.
Term/Quarter Enrollment Schedule
| Fall Quarter | September 1—December 31 | Courses are open for enrollment by June 16. |
| Winter Quarter | January 1—March 31 | Courses are open for enrollment by Sept. 1 |
| Spring Quarter | April 1—June 15 | Courses are open for enrollment by January 1. |
| Summer Quarter | June 16 —August 31 | Courses are open for enrollment by April 1. |
International student application deadlines
If you're an international student, visit this page for F-1 visa deadlines.
UCSC Silicon Valley Extension is closed on the following holidays.
| Thursday, June, 19, 2025 | Juneteenth |
| Friday, July 4, 2025 | Independence Day |
| Monday, Sept. 1, 2025 | Labor Day |
| Tuesday, Nov. 11, 2025 | Veterans Day |
| Thursday, Nov. 27 & Friday, Nov. 28, 2025 | Thanksgiving Weekend |
| Wednesday, Dec. 24, 2025–Jan. 1, 2026 | Winter Closure |
| Monday, Jan. 19, 2026 | Martin Luther King, Jr. Day |
| Monday, Feb. 16, 2026 | Presidents' Day |
| Friday, March 27, 2026 | Cesar Chavez Day |
| Monday, May 25, 2026 | Memorial Day |