Riptide, does this concern you, or are you just curious ?

Psychologists can't work 5 days a week, 8 hours a day and stay rested and refreshed and have a healthy personal life also. (Not for long anyway.)

Sometimes the session length is shortened, due to time constraints of the patient, or ability to pay for only a half session etc.

Few weeks are exactly the same. Patients cancel, new people have consultations, there are emergencies that take up time too.

Not only does a psychologist/therapist spend the session time with the patient, but she/he has prep time, and report time too... some do this at the end of the day, some do it one day a week etc... In actuality, a patient can take 1 1/2- 2 hours a week of the doctor's time in all, not counting emergency phone calls.

With that in mind, a doctor who carries a patient load of 30 patients a week (say in 4 days with the 5th day for prep/report ) she/he is working nearly 60 hours a week!

No practice is the same as another, ever. But this might give you some ideas on whatever it is you need to know.