Complete school year calendar for Half Hollow Hills Central School District (Long Island). Includes all holidays, breaks, and important dates. 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 |
| Easter Recess | March 26 & 29, 2027 (Fri & Mon) | No School |
| Spring Recess (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 Half Hollow Hills Central School District spans several upscale communities in Suffolk County, serving around 7,000 students. It is globally recognized for its incredible volume of research science competition winners and elite college admittance rates.
The academic calendar is heavily scrutinized by parents, as every date matters in this high-achieving environment. The district successfully integrates major multicultural observances, ensuring students do not miss crucial instructional time during Diwali, Lunar New Year, and Eid.
For easy reference, use the button at the top of this page to download a free, color-coded printable Half Hollow Hills school calendar for your fridge or desk.
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 12, 2026.
Half Hollow Hills has two high schools: Half Hollow Hills High School East and Half Hollow Hills High School West, located in the Dix Hills community.
Yes! The spring recess runs April 2-10, 2027 (9 days), which is longer than most other Long Island districts.
Half Hollow Hills is located in Long Island. Nearby school districts include Commack, Huntington and Bay Shore. Each district sets its own academic calendar, though break schedules in the same region often align.
Data Source: This calendar is based on projected dates derived from historical Half Hollow Hills Central School District scheduling patterns.
Disclaimer: This website is not affiliated with, endorsed by, or connected to Half Hollow Hills Central School District or the New York State Education Department (NYSED). For the most current and official calendar, please visit www.hhh.k12.ny.us.
Dates are subject to change. Religious holiday dates are approximate and based on projected lunar calendar calculations.
Last updated: March 17, 2026