Today is 4 September. The count does not start today and it does not start on 1 September — it starts on the first trading day of the PREVIOUS month, and runs backward from there over daily candles.
Where the count starts — The first trading day of the previous month, then backward over DAILY candles. Weekends and holidays are not candles, so they are not counted.
Three ranges, read one at a time — Each window has its own high, low and equilibrium — and its own answer to premium or discount. They disagree often, and that disagreement is information.
What you mark inside it — Which PD arrays sit in that range's discount and which sit in its premium. That is what a level is for: it tells you which side of the range you are shopping on.