I write in the mornings. I get up every morning at about six in the morning and write until nine, hop in the shower and go to work. Nighttime I usually reserve for re-reading what I've done that morning. I would be lying if I said I stuck to that schedule every single day.
I think I'm more sympathetic to writers, to the work and the struggle and the craft of it, than when I was in graduate school at NYU and was very judgmental.