|September 2||Boarding students check-in and move into dorms|
|September 5||Labor Day – offices closed|
|September 6||Registration day and welcome BBQ, 3-6 p.m.|
|September 7||First day of classes|
|October 17-21||Quarter Examinations|
|November 23||Thanksgiving Break – half day|
|November 24-25||Thanksgiving Break – no classes|
|December 12-16||Semester Review and Examinations|
|December 16||WINTER VACATION begins after exams end, 3:30 p.m.|
|January 8, 2023||Boarding students return – by 8:00 p.m.|
|January 9||Second semester classes begin (Monday)|
|February 20||Presidents’ Day – no classes|
|March 13-17||Quarter Examinations|
|March 30||ArtsFest, 3-7 p.m.|
|March 31||SPRING VACATION begins after classes, 3:30 p.m.|
|April 10||Boarding students return – by 8:00 p.m.|
|April 11||Classes resume (Tuesday)|
|April 14||Anniversary Antics – celebrating Southwestern’s 99th birthday|
|May 1-12||AP Exams|
|May 19||Annual Track, Field and Carnival, 12-4 p.m.|
|May 29||Memorial Day - no classes|
|May 30||Semester Review begins|
|June 2, 5-7||Semester Examinations|
|June 8||GRADUATION DAY!|
|July 4||Independence Day – offices closed|
|August 22||The 2023-2024 school year begins|
International students may stay on campus for all or part of any holiday by prior arrangement with the Student Office. There are activities, meal service, and supervision every day of the year.
Boarding students arrive at the San Marino campus and move into dormitories on Friday, September 2, 2022 (not before) during the day.
Registration day for all boarding and day students is on Tuesday, September 6, 2022, 3 p.m. to 6 p.m.
Students may leave after exams end on Friday, December 16, after 3:30 p.m. (or on Saturday, December 17). Resident students should return to their dorms on Sunday, January 8, 2023, by 8:00 p.m. Classes resume on Monday, January 9, 2023.
Students may leave after exams end on Friday, March 31, after 3:30 p.m. (or on Saturday, April 1). Resident students should return to their dorms on Monday, April 10, by 8:00 p.m. Classes resume on Tuesday, April 11, 2023.
Students may leave after graduation programs end Thursday afternoon, June 8, 2022.