Definitely not 9-5, M-F. Most billionaires inherited substantial wealth to begin with. But executives, in general, don’t have “hours” in the same way as rank and file workers. It’s more about knowledge and meetings — well, hopefully knowledge — so you might have an 11am meeting, a 2pm call, and then a 7pm dinner with a potential investor or whatever. You don’t really “work” in between those obligations unless it’s a small company (where you probably aren’t a billionaire anyway). At most, you need to make a board report or PowerPoint for a presentation or something like that.

Billionaires who just own things and aren’t in the C-suite don’t work much at all. Even if you’re on some boards, it’s not much in terms of actual obligations. There’s definitely tasks to do but it’s also definitely not a job. So, a bit like being a landlord.