Seneca Middle School - School District Calendar - Sachem Central School District - 2023-2024

This Sachem Central School District instructional academic school calendar is extremely important as it keeps you informed of Seneca Middle School grading periods, early dismissal dates, staff development days and holidays for the Seneca Middle School calendar school year 2023-2024. As a parent and or student, you will find yourself needing this information on a regular basis, so please "like" and bookmark this page in a visible location within your favorite browser. The legend for this Sachem Central School District 2023-2024 calendar is at the bottom of the page. If you are browsing on your PC there is another copy of the legend in the right hand column.