If you ever need to take a deeper look into a patient's appointment history you can audit each individual appointment against each patient if needed.
Navigate to the patient appointment tab
Click on the edit button next to the appointment in question
Then click on the clock icon to show the appointment history audit record
This gives you insight into the arrival time and the time they went into surgery as well as the history of when the appointment was created and by whom.
Example video GIF below 👇