I plan is to meet the spend by around 12/15 so the points will post shortly after 1/1 and 1/4. So hopefully by 1/6, I’ll have CP. It really depends on when your statement closes. So my Plus just started today for Jan and my Premier will start on 12/4.
My statements posted on 11/21 and 11/25 for my cards.
ETA: My card opened in October so I also had statements on 10/21 and 10/25.