The clock is quiet because it does not need your attention to keep taking something from you.

Time does not signal its passing. There is no alarm when a year goes, which is why decades can pass in a state that you always intended to be temporary, and nothing external will ever prompt you to review it. The quietness is the whole difficulty. It means the only prompt is one you create.

Set a recurring point, once a quarter, where you look at how you actually spent the last three months. Compare it with what you intended. The review takes an hour and it is the only interruption the clock will ever get.