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The Working Time Directive 1999 is a law which means a person can't work more than 48 hours in seven days.

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If a person did want to work more than 48 hours they would need to opt out of the regulation in order for them to  work extra hours.

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You may have to work more than 48 hours a week on average if you work in a job:

where 24-hour staffing is required

in the armed forces, emergency services or police

in security and surveillance

as a domestic servant in a private household

as a seafarer, sea-fisherman or worker on vessels on inland waterways

where working time is not measured and you’re in control, eg you’re a managing executive with control over your decisions

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Average working hours are calculated over a ‘reference’ period, normally 17 weeks.

This means you can work more than 48 hours one week, as long as the average over 17 weeks is less than 48 hours a week.

Your working hours can’t be averaged out if you’re under 18. You can’t work more than 40 hours in any one week.

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A working week includes:

job-related training

working lunches, eg business lunches

time spent working abroad

paid overtime

unpaid overtime

time spent on call at the workplace

travel between home and work at the start and end of the working day