When Does Hisd School Start 2025. 4:00 high school instructional day start and end times: The first day of school for hisd is scheduled for august 12, 2024, with the last day being june 4, 2025.

10, which is about a month earlier than the previous academic year. The first day of school for hisd is scheduled for august 12, 2024, with the last day being june 4, 2025.