I don't talk about him much on this blog (partly because I don't have a clever name for him), but Spouse is also in a writing profession, except that he's a model writer in ways that I'm not: he gets up, goes to his study, and starts writing. He puts in a couple of hours before breakfast and before going to his office. We kid about this sometimes, since if one of us has a good writing day and the other one is struggling, we'll say that one of us has used up all the writing energy allotted to our house for the day.
But when Spouse is done writing for the day, he's done. He won't work after dinner because (a) he's already put in 12+ hours of work by then and (b) he says he dreams about work all night if he doesn't take some down time.
I get a second wind after dinner and a few hours into the evening. The only time I actively have a desire to write is after about 7 or 8 p.m. Even if I think I'm done, as in reading an unrelated book, I feel a positive compulsion to go to the computer and write "just a little bit."
It feels as though an alien force is dragging me there. I move to the computer as if against my will, and, once I'm there, I'm not distracted by anything. Before I know it, it's 11:30. It's zombie time, and I'm a writing zombie.
Edited to add: task for tonight's zombie time = finding a title. I brainstormed about 40 of them and they're all terrible--except the ones that somebody has already used for a book, of course.