I think it's funny how they get set in a routine. Even more funny is when they try to tell you it’s TIME MF'R!!!
I had one dog that would get her leash when it was time for her walk. I don't know for sure, but I think she learned how to tell time by my clock on the wall. Her timing was uncannily accurate. Spooky at times!
An Example: On time change days, she still got the time correct.
My Mom had a male cat that would let you know when he wanted to go out. He was a pretty vocal cat and would talk to you and answer to his name immediately. Standing by the door he wanted to go out, "OUT!" was VERY clear and he never vocalized like that any other time.