[Leherenn]

To be fair, in a lot of place it is probably illegal to work those hours. Where I am from, 11pm to 6am are night hours and you need a special contract to be be able to work during those times. This contract is subject to restrictions (i.e. the employer needs to prove you need to work those hours, e.g. you work in healthcare, retail, ...) and they would need to compensate you more per the law. Same thing for Sundays.

[0xffff2]

Where are your from? AFAIK in the US most developers are paid as salaried exempt employees, which means they never got overtime pay and can work any hours. I don't think the restrictions you state are generally true anywhere in the US either, even for hourly employees.

[dejaime]

This. That's one of the reasons. Here anything between 22 and 5h is also considered night work. If your work is nocturnal (e.g. a security guard) you receive a "night time bonus" on top of your hourly rate. If it isn't though (e.g. a programmer), in theory one would need to receive double hourly rate to work those hours. This does not apply to contractors here, but is an issue when hiring someone as a formal employee.