Teacher Timetable Generator

A teacher timetable is a structured weekly schedule that maps out every class a teacher is responsible for — including the subject, grade or section, classroom, and time slot. Unlike a student timetable that shows what a class is doing each period, a teacher timetable shows exactly what each individual teacher is doing at every point in the school week.

A well-built teacher timetable is essential for three reasons. First, it prevents scheduling conflicts — situations where a teacher is assigned to two classes at the same time or two classes are booked into the same room simultaneously. Second, it gives teachers a clear and predictable weekly structure so they can plan lessons, prepare materials, and manage their professional workload without last-minute confusion. Third, it makes substitution planning fast and accurate when a teacher is absent.

For academic coordinators and school administrators, the teacher timetable is also the foundation of the entire school's scheduling system. Every student timetable, room allocation, and exam schedule depends on the teacher timetable being accurate and conflict-free. Errors in the teacher schedule cascade into problems across the whole institution.

TimetableGen's teacher timetable generator makes it easy to build, check, and export individual teacher schedules in minutes — without the complexity of expensive scheduling software.

Building a teacher timetable with TimetableGen takes just a few steps. The builder below works directly in your browser with no installation or signup required.

Step 1 — List all teaching assignments: Before opening the builder, collect the full list of classes each teacher is responsible for. Include the subject name, grade or section, assigned classroom, and number of periods per week. For example: Mathematics, Grade 9 Section A, Room 12, 5 periods per week.

Step 2 — Enter each class with subject and room: Add every teaching slot into the timetable grid with the subject, section, and room number clearly noted. Having the room number visible in each cell makes it immediately obvious when back-to-back periods require a teacher to move between distant rooms with no travel time — a common but avoidable problem.

Step 3 — Block non-teaching duties: Teacher workload includes much more than classroom hours. Add visible slots for staff meetings, parent-teacher calls, paper checking, lesson planning, lab supervision, and mentoring sessions. Making these duties visible in the timetable prevents them from being accidentally scheduled over and ensures accurate workload assessment.

Step 4 — Check for conflicts: Use the conflict detection feature to scan for any period where the same teacher is assigned to two slots simultaneously. Resolve all conflicts before finalising the timetable. Even a single undetected conflict can cause significant disruption when the school week begins.

Step 5 — Color-code by subject or grade: Assign a distinct color to each subject or grade level. When the timetable is printed or displayed digitally, teachers and coordinators can see the weekly distribution at a glance without reading every cell individually.

Step 6 — Export and distribute: Export the finished timetable as a PDF for printing and notice board display, or as a PNG for sharing digitally via email or school communication platforms. Keep a copy in the admin office for substitution reference.

One of the most common sources of teacher dissatisfaction and burnout is unequal or excessive workload. A good timetable system makes workload visible and fair. Here is how to approach teacher workload planning effectively.

Set a maximum for daily contact hours: Most education boards recommend a maximum of 5 to 6 contact teaching hours per day for full-time teachers. Beyond this, lesson quality drops noticeably because teachers have insufficient time to prepare between sessions. Build this cap into your timetable from the start rather than trying to adjust it later.

Calculate weekly teaching periods per teacher: Before building the timetable, calculate the total number of teaching periods required across all subjects and divide them by the number of available teachers. This gives you a target workload per teacher. If some teachers are significantly above or below this target, redistribute classes before finalising the schedule.

Separate lab supervision from theory teaching: Laboratory supervision is more physically and mentally demanding than a standard classroom lesson. Mark lab supervision periods separately in the timetable so they are counted appropriately in workload reporting. A teacher with three lab supervision sessions per week is carrying a different workload from one with three standard classroom periods — even though the raw period count looks the same.

Protect preparation and planning time: Every teacher needs dedicated time within the school day for lesson planning, marking, and professional development. This time should appear in the timetable as a reserved slot, not as a vague expectation that it will happen somehow. Schools that protect planning time in the timetable consistently report higher teacher satisfaction and better lesson quality.

Conflicts in a teacher timetable fall into three categories: teacher conflicts, room conflicts, and transition conflicts. Each type requires a different approach to resolve.

Teacher conflicts occur when the same teacher is assigned to two different classes at the same period. This is the most serious type of conflict because it is physically impossible for one teacher to be in two places at once. TimetableGen's conflict checker highlights these automatically. Resolve teacher conflicts by moving one of the clashing slots to a different period where the teacher is free, or by reassigning one class to a different teacher.

Room conflicts occur when two classes are scheduled in the same room at the same time. These are easy to miss when building a large timetable manually but can be caught immediately with automatic conflict detection. Always assign a unique room to each slot and verify that specialist rooms like labs and computer rooms are not double-booked.

Transition conflicts are subtler but equally disruptive. They occur when a teacher is assigned to consecutive periods in rooms that are far apart — for example, the science lab on the ground floor and a classroom on the fourth floor with no break in between. Review the physical layout of your school when building the timetable and avoid scheduling back-to-back periods that require long room changes.

Teacher absences are inevitable. A well-organised teacher timetable makes substitution planning fast and stress-free for school administrators.

Keep a printed copy of every teacher's timetable in the admin office: When a teacher calls in absent, the coordinator can immediately see which periods need cover and which rooms are involved. Digital copies are useful but a printed backup prevents problems when systems are slow or unavailable.

Identify free periods across all teachers: Your timetable should make it easy to see, at any given period, which teachers have no class assigned. These are your substitution pool for that period. TimetableGen's grid layout makes free slots visually obvious without needing to scan through lists.

Note subject-qualified substitutes: When possible, assign substitutes who are qualified to teach the subject being covered. Use the notes field in TimetableGen to flag which teachers can cover which subjects as substitutes. This information is invaluable during unexpected absences.

Plan for long-term absences: If a teacher is absent for more than a week, the timetable needs a temporary restructure rather than ad hoc daily substitution. TimetableGen makes it easy to duplicate and modify a timetable to reflect a temporary reassignment without affecting the original schedule.