No cure time. It may look better a day or two later when topped w/wax though, but there's no need to wait to apply the next product. The improved looked when topped w/wax was probably due more to the wax now that I think about it.
AIO ---> wipe-off AIO ---> Sealant or Carnauba ---> Carnauba
A lot of people like the sealant or carnauba to cure 24 hours before following up with another layer or product. I never have waited (too eager to see the end results, LOL) so I cannot tell you if there is an advantage or not.
It's funny that you ask that because I noticed that when I apply wax over a freshly AIO'd finish, the wax is hard to remove but if I wait until the next day, it's very easy to remove. I can't explain it, but it does happen. The wax I'm referring to was P21S.