The hours you must pay a worker the National Minimum Wage or National Living Wage for depend on the type of work they do. This does not depend on the worker's occupation - it depends how you pay them. For minimum wage purposes there are four different types of work: time work, salaried hours work, output work and unmeasured work.
This guide describes how for minimum wage purposes you should calculate the hours worked by workers doing time work - known as time workers.
If a worker does different types of work for you or for different employers the rules and calculation of hours apply differently for each type of work that the worker does.