The pets get fed at 4pm.
The other day husband comes upstairs at 3 and says "the pets are really bad at telling time! Bean kept biting my ankles and trying to get me to feed her!"
Me: "who feeds her in the afternoon?"
Him: "well, you usually."
Me: "and she's not bothering ME, is she?"
At about 3:40 Bean came and sat next to me on the couch. At 3:58, she placed a single paw gently on my arm and meowed. She knew what time it was—she was just shaking him down to see what she could get.