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 confusion normal hours should be specified, such as “8 am to 5 pm Monday to Friday excluding an hour for lunch”. Sometimes the employer may wish to retain some flexibility and add something like, "or any other such hours as the company deems necessary". The policy on overtime should also be made clear.
The precise details of the hours of work are between you and your employer, as long as they comply with the Working Time Regulations.
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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