Oh - this scenario. It's quite common in movies and the like. It always amused me how screenwriters grant you some kind of magic powers just because it's your last day. Realistically though, you'd probably do pretty same things you always do more or less with your close ones. E.g. I don't see how you'd get together with the love of your life if you couldn't do it before 🤨
Well, if I could spend it with anyone on Earth I'd choose to spend my last day with greatest healer\doctor I could learn about and ask him to heal me.
Never liked the teary scenes.