“Free time.” That’s a cute expression! Does this mean that the rest of the time isn’t “free time,” but rather prison time, chained time, time in a cage? Yes, without a doubt, otherwise we wouldn’t say “free time.” What’s the difference between “free time” and “not-free time”?
“Not-free time” is time filled by someone other than ourselves. That is, time during which someone other than us has decided what we should do.