The MusicTeacherNotes music school management system adjusts to a music teacher's lesson schedule. Teachers can choose when lessons should start and lesson durations. The set this on the dashboard.
The start times and durations you set are used when you schedule a lesson for a student. For example, if you set the start times only to be allowed to begin at the top and bottom of the hour, you will only be permitted to schedule lessons at the top or bottom of the hour via the "schedule a lesson" feature.
Additionally, if you set the lesson durations to be only 30 minutes, then you will only see 30 minutes as an option when you schedule lessons.
If you do not adjust the setting for your music school, the scheduling system default setting is for lessons at the top and bottom of the hour and duration of 30 minutes or 60 minutes.