The written statement of particulars of employment, which should be given to employees within 8 weeks of starting work, should include "details of terms and conditions of employment relating to hours of work and normal working hours".
In order to avoid misunderstanding normal hours should be specified, and the policy on overtime made clear.
If you work annualised hours, a normal working week's hours should still be stated so that, for example, holiday pay can be correctly calculated.
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