There is no magic time frame, but if youre going by what is taught in this course, youre drawing your supply and demand blocks on the 1 hr chart. The Daily is great for identifying a market trend and a bias as far as where a more ideal premium or discount zone may be, then from there identifying more significant supply and demand on the 1hr, 2hr, 3hr, 4hr whatever, depending on the picture it creates. Sometimes changing the time frame will allow you to see something more clearly.