I presume you mean "free" time... beyond what I "must" or "should" do (sleep, work, church, housework, eating, etc.). I help with a youth group a couple of hours each week. I interact a fair bit on this site, play music, do some woodworking and gardening (in summer), and watch movies and informational videos. Sometimes I'll play table games with friends, read, or even work on my drawing skills (rudimentary at this point).
Even with all these interests, I have times when I'm not inclined to do anything in particular. Then I feel a bit bored, and realize that those are times when I need to rest... not sleep, just turn off my brain for a while, or I'll go for a walk. Fresh air is usually an effective antidote for ennui.