>>You can't advertise a job where you set the hours and those hours are on average over 48 hours per week. It's not a valid job and you are immediately in breach of statutory law.

https://www.acas.org.uk/working-time-rules/the-48-hour-weekl...

Every UK job I have ever seen has the opt out clause in the contract. And they always say "well you can just tell us and we'll remove it" but it's there by default, and they make it clear that they have 800 other applicants for every position so do you really want to risk it?