The therapist has some sort of automated system that sends the texts. She doesn't send them herself.

ETA: And yes, I do find it helpful. There have been a few times when I thought it was scheduled for one time but it was actually for another. I was definitely remembering incorrectly - my calendar would also have the correct time, but I probably wouldn't have checked it since I had in my mind when it was. The therapist schedules new appointments every week, so they are at varying times.