The Horseheads Central School District calendar features essential dates including the first day of school, early dismissals, parent-teacher conferences, holiday breaks, testing periods, and graduation events. Families rely on these key milestones to plan schedules, track academic progress, and stay informed. https://diytemplates.wordpress.com/2025/11/18/important-dates-in-the-horseheads-central-school-district-calendar/