It's simple - I write in the evening because I work during the day. At the weekend, I do shopping, housework, gardening, etc during the day, so once again, writing takes place in the evening. Occasionally I'll write in the afternoon at the weekend, but generally I try to stay away from screens (TV or computer) until the evening.
As for which part of the evening - well, oftentimes I sit down to write at 7pm, but inspiration doesn't strike until 10pm, by which time it's getting late and I might want instead to go onto IRC to talk to my friends around the globe. That, in a nutshell, is why I write so slowly: it takes me a long time to crank up the Muse, and then when she's finally firing on all cylinders, she has a pretty short window of opportunity before I want to go and do something else <g>.
Yvonne
