This is certainly true. Ailish gets fed at 9:30p, she starts getting restless at 8:45p. Her previous feeding is about 4:30p, so I figured one time that I fed her late, around 5:30p, her schedule would be an hour off. Nope. 8:45p she's marching across my face to let me know dinner time is coming.It boggles the mind how cats tell time so accurately.