> What place has a law that prevents you from hiring three sets of locals to work three different 8-hour shifts?

You hire 2 people to work 12-hour shifts. The machine is moving in your country, but the employees work somewhere (and for someone else) with lax labor laws.

OK but that's not much related to work time laws, that's related to work pay laws and market conditions.

The benefit of squeezing away the lunch break isn't important to an overall job.