Value of time

How does one understand the value of time for someone whose liberty has been curtailed for many years? In thinking about years of life and liberty lost, there are a number of crucial factors to consider for which we have no reliable measure except perhaps what know from our own experience - lost opportunity to grow into the world with your loved ones, develop an identity, nurture friendships, find love, explore the horizons of your world and beyond, learn complex things, experience ageing and physically, emotionally and intellectually changing over time, and so much more. How does one even estimate the value of lost time? It is almost impossible to do this. No belief or knowledge system can help one appreciate the value of lost time. So, given the impossibility of this task, do we have adequate ways of considering the value of lost time in building safeguards against gross errors in processes designed to impose confinement and confiscation of liberty? If so, how do we acknowledge and redress those errors when they do occur? And in our contemplation of the impost of those errors, how do we even put a value on what has been purposely taken from another human being?