Schools will clearly state the mandatory contact days, non-contact days, and leave allowances (holiday, personal, sick, bereavement etc.).
The variations will be based around local country laws and practices, as well as the school’s own policies.
This information will be available for any school with whom you ‘match’ for a position.
Senior management and administrative staff will generally have a higher number of working days per year than teachers.
Your school will be able to confirm this for you very early in the recruitment process.