Can we really save time? Doesn't it just passes whether we like it or not? It's not like money. Money, if you don't spend it, can be saved and put to use for later. Time, if you don't spend it, just passes. We always have the same number of hours per day, days per week, weeks per year... Therefore we can't save time, we can only spend it. But why do we always hear about "saving time"? Discuss.