@iLouzze I don't know if there's any way to turn it on automatically without an external timer. You could probably set up a "cron job" to shut it down (I don't know how to do that, though, I have only heard of it as a way you can set up scheduled events.)

@gusrod1580 you'll need to do it through RGUI -> Quick Menu -> Save/Load State.
But first you'll need to configure a hotkey to invoke RGUI. I'm sure that a reading at this wiki will help you:
https://github.com/retropie/retropie-setup/wiki/RetroArch-Configuration

Cheers!

@herb_fargus What do you mean??

@Gusgmb does it happen on all emulators or just some? Are you sure you're using the libretro version? Also what's your config in RetroArch-joypads? Please format it properly as described on the read this first page