The School Day
Monday, Tuesday, Thursday, Friday - Our school day begins at 8:25 am and ends at 3:45 pm.  (Doors open at 8:00 am)
Late start Wednesdays* - the school day begins at 9:25 am and ends at 3:45 pm. (Doors open at 9:00 am)
* There are no late starts on August 13, 2025, October 8, 2025 (PSAT) , December 17, 2025, January 7, 2026, March 4, 2026 (SAT), March 25, 2026 (WIN Testing), May 6, 2026, May 13, 2026, May 20 2026.

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.