The School Day
Monday, Tuesday, Thursday, Friday - Our school day begins at 8:20 am and ends at 3:40 pm.  (Doors open at 8:00 am)
Late start Wednesdays* - the school day begins at 9:20 am and ends at 3:40 pm. (Doors open at 9:00 am)
* There are no late starts on August 12, 2026, October 7, 2026 (PSAT) , December 16, 2026, January 6, 2027, March 3, 2027 (SAT), March 24, 2027 (WIN Testing), May 5, 2027, May 12, 2027, May 19 2027, May 26, 2027.

Chapin High School’s year consists of four quarters of approximately nine weeks duration. Classes meet for 18 weeks (one semester) or 36 weeks (two semesters) on an alternating A/B block schedule of 90-minute class periods, four class periods per day.