Half Hollow Hills Central School District Calendar 2025–2026

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 2025 through June 2026.

Official dates — These dates are based on the approved Half Hollow Hills Central School District 2025-2026 board calendar.

Key Dates at a Glance

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Key dates for Half Hollow Hills Central School District 2025-2026 school year
Event Date(s) Status
First Day of School September 4, 2025 (Thu) School Opens
Rosh Hashanah September 23–24, 2025 (Tue–Wed) No School
Yom Kippur October 2, 2025 (Thu) No School
Columbus Day October 13, 2025 (Mon) No School
Diwali October 20, 2025 (Mon) No School
Veterans Day November 11, 2025 (Tue) No School
Thanksgiving Recess November 26–28, 2025 (Wed–Fri) No School
Holiday Recess Dec 24, 2025 – Jan 2, 2026 No School
Martin Luther King Jr. Day January 19, 2026 (Mon) No School
Winter Recess February 16–20, 2026 (Mon–Fri) No School
Eid al-Fitr March 20, 2026 (Fri) No School
Spring Recess April 2–10, 2026 (Thu–Fri) No School
Memorial Day May 25, 2026 (Mon) No School
Eid al-Adha May 27, 2026 (Wed) No School
Juneteenth June 19, 2026 (Fri) No School
Last Day of School June 26, 2026 (Fri) School Closes

Half Hollow Hills School Calendar 2025–2026

Complete month-by-month calendar from September 2025 to June 2026. Every day is color-coded so you can see school days, holidays, and breaks at a glance.

School Day
Weekend
Holiday (No School)
School Break
First / Last Day
Important Date

Half Hollow Hills District Overview

The Half Hollow Hills Central School District 2025-2026 school year serves roughly 7,000 students across western Suffolk County. Encompassing affluent areas like Dix Hills and Melville, it is widely considered a top-tier Long Island academic institution.

With two prominent high schools (High School East and High School West), the district is highly competitive in both Ivy League placement and athletics. Consequently, the school calendar is a vital tool for families navigating intense AP testing blocks, rigorous Regents weeks, and major cultural holiday closures like Diwali and Lunar New Year.

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.

Frequently Asked Questions

The first day is Thursday, September 4, 2025.
Holiday Recess runs from December 24, 2025 – January 2, 2026.
Spring Recess runs from April 2–10, 2026.
The last day is Friday, June 26, 2026.
Mid-Winter Recess runs February 16–20, 2026, coinciding with Presidents' Day week.
Half Hollow Hills CSD serves approximately 9,200 students across 9 schools in western Suffolk County. The district includes two high schools — High School East and High School West — which creates a unique community dynamic among families.
Yes. Half Hollow Hills is consistently ranked among the top 30 school districts on Long Island, known for strong AP participation rates, competitive athletics, and a wide range of extracurricular activities.
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.

About This Calendar

Data Source: Official Half Hollow Hills Central School District calendar publication.

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.

Official calendars can still change. Always confirm updates with the district before making plans.

Last updated: March 17, 2026