Responses

The UK but a lot of European (Western European) countries follow similar rules. Germany has probably the best and worst rules since you legally are not allowed to work over 40 hours I think. It’s illegal to overwork yourself in Germany. Which is great but everything is expensive there so their jobs have to pay you a good wage.
I don’t think companies should contact you outside of work except for information that is vitally needed for the next day like “building a is under maintenance so work from building b instead.” You should also not conduct business over the phone unless you’re recording the call. It’s unreliable and it’s very much she said he said so anyone can lie. This phone call could have been an email or a meeting at work the next day. I know it’s a different country but it’s a labour law I actually really like in my country so I’m hoping other countries utilise it too!