Hillsdale High School Calendar 25-26. 12:00pm hhs registration 9th grade 11 12 13 14 15 16 17 opening meeting/staff work day staff inservice/work days 12:00pm new staff orientation 3:00pm districtwide. Event first day of school all dayon monday august 12 2024 all day.

Hillsdale public schools first day: If your child attends a private, parochial, charter school, nyc early education.