I am 29 years old. I have just completted my ph.d. in physics (my thesis was on a rather obscure approach to quantum gravity, called causal set theory). I am starting a post-doctoral position in India. Anyway, I have recurrent fight with my girlfriend regarding the fact that I overfocus on physics and don't give her enough time. From her point of view, the working day is 8 hours, and she allows me to work a lot more than that: all she asks me is to give her 4 hours a day and at least one weekend. However, when I talked to my former thesis advisor about it, he said he barely spends any time with his wife at all. From his point of view, it is hard for people who are outside of physics to understand that you can do research outside of the lab (my girlfriend is in biochemistry), but it is normal for people in theoretical physics to work as much as I do. However, my girlfriend pointed it out to me that she knows two people who are also graduate students in physics department, and both of them spend far more time socializing than me. She also pointed out that when I went to one of the conferences, people socialized with each other. From her point of view, this indicates that in general they are more willing to socialize than me; I don't have evidence one way or the other. So I would like to make an opinion poll and get objective evidence. How many hours a day do physicists on my level spend with their girlfriends?