This question is more for providers but i welcome input from fellow experienced hobbyists as well.

Should i book a provider in the afternoon times or earlier/later in the evenings? Is there any difference in the mood,attitude and overall energy of the provider at certain times throughout the course of the day?

and if she lists her availability on her site or ad. If not you just have to ask her about the time you want.

Some ladies have other jobs, families, etc, that limit when they can take appointments, some seem to be ready 24/7.

Trying to figure it out any more than that isn't worth it.

keeping in mind that i have suffered more ncns's from am appts.

Different providers prefer different time periods.  Some providers are "night owls" and don't mind scheduling an appointment past mid-night, but don't rise from their sleep until 1 pm.  Some others (and yes, I've met them) want to be fast asleep by 10 pm, but being early risers don't mind a 9 am appointment.  

Your best is to ask her.