How we organize our time is far less dependent on the system we use than our basic sense of what the most valuable unit of time is.
Of course there are things we do annually. Other things we do monthly. Still other things we do weekly. And certainly the things we do daily.
But how we see our lives is important. If you are a person striving to live each day, a system organized around weeks and months may be the wrong fit. And vice versa.
Productivity systems are generally one-size-fits-all. Which, in reality, is one size-kinda-fits-most. The one you think you need to be using may not be best suited to what you need. Figure out which time frame you operate from and tailor your life accordingly.