How fast or slow can time pass on a planet in Star Citizen? Will there be 24-hour planets, or will it be shortened down because it is a game?

I think it's way too early to know.

I know we have what you'd consider a 24-hour life cycle that we're thinking through, but could that be condensed for gameplay? Yeah, it can. It most likely will, but it's too early to really decide exactly. Now, I say that, and I'm sure Todd Papy or Tony Z or somebody goes, no, come on, it's already been decided. It's 4.3, right? Whatever.

It's one of those things I don't think we know. We don't need the answer right now, so it's still open to work on.