I spent an entire slime rancher day, from 6:04 to 19:12 selling nearly 1000 plorts while having to rush some feeding and gathering. I literally didn't spend a single (ingame) minute without moving, selling, or picking up something.
Though all those plorts made some good money:
EDIT: I didn't realize the screenshot ingame doesn't show your stats! The money I have is 93,087.What was your hardest day for you?