Hobbies????

I am filling the form and they want to know my hobbies. HOBBIES? WHAT IS THAT? I am apprehensive for using the word but the great system we have here , does it leave any time for hobby? Working 10 hour shift , then studying for exam , then doing house chores sleep waking up early with half sleep than what we read was essential and studying again. What kind of hobby anyone can cultivate? I feel like writing "slogging in a system created by our very talented seniors where everyone is busy , everyone is in a hurry , no one has time for anything, no leaves , no travel , no extra curricular and yet no body reaches anywhere, ever, that slogging dear sir/mam is my hobby, hope you'll grill me about it".