Normal weekly hours are worked out for each employee by looking for the following data in this order:
The contracted weekly hours field recorded via the working pattern record for the employee.
The weekly hours as specified by a working pattern recorded for the employee.
The weekly hours specified by the default working pattern for the payroll.
Alternatively, if an employee does not work normal hours, you can specify within the Gender Pay Gap - Addition Heading Classification window one or more payment headings from which actual hours, entered during the snapshot period, can be picked up. These hours are added to any normal contracted hours derived from contracted weekly hours, specified for the employee.

Weekly hours for the employees working less than a full year (e.g. term-time only employees), are automatically factored down to take into account of the weeks worked in the year as per the employee's contract.