They say that time is money. But what exactly does that mean? It is important to know how much our time costs. Its value is frequently taken into account, for example, in transport planning. Is it possible to determine the exact value of time at all? It is complex and during the process of finding the value of time, mistakes are often made. In this video, we will shed light on a distinctly inconspicuous mistake. To reveal what the mistake is, it is important to understand human nature and the methodological peculiarities of the discipline of time valuation.