The Equal Pay Act 1970 now incorporates the UK Equality Act 2010. It provides an equality clause for anyone (men and women) employed in Great Britain.
EQUAL PAY UK: What is the Equal Pay Act 2010?
Equal pay means employers must give men and women equal treatment.
Equal treatment of men and women refers to the terms and conditions of their employment contract.
More specific is when they get employed to do:
• 'Like work': Work that is the same or broadly similar.
• Work rated as equivalent under a job evaluation study.
• Work found to be of equal value in terms of skill, effort, or decision making.
The effect of the equality clause is that where any term of the woman’s contract is, or becomes, less favourable to her than a term of a similar kind in the contract under which a man is employed, that term of the woman’s contract is modified so as to make it not less favourable; where the woman’s contract does not include a beneficial term that forms part of the man’s contract, the woman’s contract is treated as including the missing term.
In England and Wales, shop workers get protected from compulsory work on Sundays.
They have the option to opt out of Sunday working without their action resulting in dismissal or detriment.
That said, the law does not apply to those who are specifically contracted to work on Sundays.
Equal Pay Act 1970; UK Rules Updated 2017