This question is so definite.
Alright here let me give you give an example, when you eat noodles do you count how many noodles you slurp in? Similarly, when you read or write, do you count how many words you've read or wrote? When you chat with someone online, do you count how many lines you've wrote to them? Likewise, when USA builds its nuclear weapons, does it count how many missiles it has built? (OOps, did I say that out loud) J/K
Anyway, my point is that when you are engaged in these activities, we don't count how much time we spend on them. We simply enjoy it. (Atleast that is is the case with me)