You can't change the date and time on a Kindle Fire HD, and the cheat with the tape recorder won't work either now with the new update. This is happening more and more theses days: game creators are looking on cheat blogs and YouTube, and then designing out cheats in new updates. This is really unfair, as if someone is clever enough to find a cheat that works and wants to share it, then they should be allowed to. I have Animal Crossing Wild World on DS, and all the oldest cheats still work for that. That means that even though it's old, I still enjoy playing it coz I have a huge house and lots of money. Sorry to be the bringer of bad news, but it looks like we will have to wait a while for any proper cheats for the Sims Freeplay.