Master Schedule 2026–2027

☀️ Daily — the week at a glance: which class codes run in each bell slot, per day. Hover a class pill to see its teacher. Start here for quick questions.
📋 Detailed — the full grade-section grid with exact labels and teacher tooltips. Use the day tabs to focus one day or expand the whole week.
🛠️ Filter rail — everything left of the grids filters what you see, top to bottom: Periods (the transit line — green stop = shown, red = hidden; # and Time cells in the grid toggle too), Grades (Elem · Mid/Up · Type columns), Courses by Teacher, and Courses by Colors — the last two searchable by name, code, or hex. Every exclusion is spelled out in red above the grid, and 🧹 restores everything.
🏋️‍♀️ Teacher Load — beneath the grids: periods occupied per teacher per day — one count per bell slot, however many codes or sections share it. Off-periods are not counted.
⬅️ Timeline ➡️ — the same filtered schedule flattened into chronological rows: day, time range, the class codes running, and how many. Day tints match the Daily grid.

Collapsible month grids and an event timeline, sliced by an adjustable month window (JAN/2026–DEC/2027), season chips, year, and event category; any non-default view is called out in red. Three school tabs sit beside the main tabs:
HLA — Al-Hadi\'s official academic calendar: session dates, closures, preschool-open days, exams, quarter milestones, and Islamic observances.
HISD — Houston ISD\'s calendar: holidays, student recess, PD days, grading-cycle boundaries, and milestones.
Δ DELTA — the computed difference: weekdays where one district is in session and the other is off — the days that matter for siblings, carpools, and staffing across the two systems.