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 runs from September 2, 2026 to June 25, 2027. This calendar was approved by the Board of Education on January 15, 2026. With approximately 6,300 students across 10 schools, Commack is one of Suffolk County's most respected districts, neighboring Half Hollow Hills and Smithtown.
The 2026-2027 calendar features two separate spring recesses for Easter (March 25-26, 29) and Passover (April 19-23), plus closures for Eid al-Fitr (March 9, as Superintendent's Conference Day) and Eid al-Adha (May 17). The district has 180 student attendance days and 4 conference days.
Sep 2, 2026.
Jun 25, 2027.
Dec 24 – Jan 2. Students return the next school day.
Apr 2-10, 2027.
Feb 15-19, 2027.
181 student days. Approved January 15, 2026.
Commack serves approximately 6,500 students across 6 elementary schools, 2 middle schools, and 1 high school.
Yes! Commack's spring recess runs April 2-10, 2027 (9 days), similar to neighboring Smithtown.
Data Source: This calendar is based on projected dates derived from historical Commack Union Free School District scheduling patterns.
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.
Dates are subject to change. Religious holiday dates are approximate and based on projected lunar calendar calculations.
Last updated: March 13, 2026