This happens with my wife too and she has little concept of time of day eg asking another dog walker at 10am today whether this was the last walk before bed. She also gets anxious about appointments if she knows about them in advance (and remembers). If money is involved eg paying the hairdresser she will count her cash many times on the morning of the appointment then be surprised when I say that it is time for us to go.I have noticed that my mother sometimes looks at the clock and gets it the wrong way round. She confuses the big and little hands so might be hours out.
This happens with my wife too and she has little concept of time of day eg asking another dog walker at 10am today whether this was the last walk before bed. She also gets anxious about appointments if she knows about them in advance (and remembers). If money is involved eg paying the hairdresser she will count her cash many times on the morning of the appointment then be surprised when I say that it is time for us to go.