My hubby, with dementia, gets up at 3 am and dresses to go out. He fusses at me from then on to hurry up and get dressed and get ready to leave. This is no matter when his doctor or other appt is scheduled. We often leave home by 4 am and spend the day waiting in the doctor's parking lot for a 3:30 pm appt. If I "spring" the appt on him when it's time to get ready to leave he refuses to go because I didn't tell him about it the day before! I've tried showing him on the clock, setting an alarm for time to get ready, x number of hours before time to leave ---- everything I can think of. He is just like his mother in this --I also took care of her in her later years.