Quick overview of the Working Time Directive:
http://www.berr.gov.uk/whatwedo/employment/employment-legislation/working-time-regs/
EDIT:
And the specifics:
http://www.berr.gov.uk/whatwedo/employment/employment-legislation/employment-guidance/page28979.html
http://www.berr.gov.uk/whatwedo/employment/employment-legislation/working-time-regs/
The basic rights and protections that the Regulations provide are:
a limit of an average of 48 hours a week which a worker can be required to work (though workers can choose to work more if they want to).
a limit of an average of 8 hours work in 24 which nightworkers can be required to work.
a right for night workers to receive free health assessments.
a right to 11 hours rest a day.
a right to a day off each week.
a right to an in-work rest break if the working day is longer than 6 hours.
a right to 4 weeks paid leave per year.
EDIT:
And the specifics:
http://www.berr.gov.uk/whatwedo/employment/employment-legislation/employment-guidance/page28979.html
If a worker is required to work for more than six hours at a stretch, he or she is entitled to a rest break of 20 minutes.
The break should be taken during the six-hour period and not at the beginning or end of it. The exact time the breaks are taken is up to the employer to decide.
Employers must make sure that workers can take their rest.
Mobile workers are excluded from the usual rest break entitlements under the Working Time Regulations. Instead, these workers are entitled to 'adequate rest'.
'Adequate rest' means that workers have regular rest periods. These should be sufficiently long and continuous to ensure that fatigue or other irregular working patterns do not cause workers to injure themselves, fellow workers or others, and that they do not damage their health, either in the short term or in the longer term.
For information on when the limits may not apply see Section 8.


