Complete school year calendar for Commack UFSD — one of Suffolk County's largest and highest-performing school districts on Long Island. Includes all holidays, breaks, half days, and important dates from September 2026 through June 2027.
| Event | Date(s) | Status |
|---|---|---|
| First Day of School | September 2, 2026 (Wed) | School Opens |
| Labor Day | September 7, 2026 (Mon) | No School |
| Yom Kippur | September 21, 2026 (Mon) | No School |
| Columbus Day | October 12, 2026 (Mon) | No School |
| Election Day | November 3, 2026 (Tue) | Supt. Conf. Day |
| Veterans Day | November 11, 2026 (Wed) | No School |
| Thanksgiving Recess | November 25–27, 2026 (Wed–Fri) | No School |
| Winter Recess | Dec 24, 2026 – Jan 1, 2027 | No School |
| Rev. Dr. Martin Luther King Jr. Day | January 18, 2027 (Mon) | No School |
| Mid-Winter Recess | February 15–19, 2027 (Mon–Fri) | No School |
| Eid al-Fitr | March 9, 2027 (Tue) | Supt. Conf. Day |
| Spring Recess I (Easter) | March 25–26, 29, 2027 (Thu–Fri, Mon) | No School |
| Spring Recess II (Passover) | April 19–23, 2027 (Mon–Fri) | No School |
| Eid al-Adha | May 17, 2027 (Mon) | No School |
| Memorial Day | May 31, 2027 (Mon) | No School |
| Last Day of School | June 25, 2027 (Fri) | School Closes |
Complete month-by-month calendar from September 2026 to June 2027. Every day is color-coded so you can see school days, holidays, and breaks at a glance.
The Commack Union Free School District 2026-2027 school year provides education for roughly 6,300 students. It is consistently revered as a premier public school district in Suffolk County, excelling in both elite academics and massive athletic programs.
The district's calendar is highly responsive to the community's diverse makeup. Commack features two separate spring recesses for Easter and Passover, while also closing schools across the district for Muslim holidays like Eid al-Fitr and Eid al-Adha. Families depend on this calendar to track these closures alongside rigorous state testing dates.
For easy reference, use the button at the top of this page to download a free, color-coded printable Commack school calendar for your fridge or desk.
Data Source: Official Commack Union Free School District calendar publication.
Disclaimer: This website is not affiliated with, endorsed by, or connected to Commack Union Free School District or the New York State Education Department (NYSED). For the most current and official calendar, please visit www.commack.k12.ny.us.
Official calendars can still change. Always confirm updates with the district before making plans.
Last updated: March 17, 2026