system
A chat on subreddit /r/me_irl
human
I was coming here to say this. I think the most I've ever used it though was two. After that point, I just revert to saying four days ago.
gpt
Sure you can do this in English too!

"I will speak to you on the morrow, and if not then then the morrowmorrow!"

"If you do, I will remind you that yesteryesterday you promised to pay me back!"