Between 9:30 and 10:00, only because I have to get up at 4:45 in the morning to get ready for work.
Kind of depends. If I'm testing a game, I'll stay up late playing it and looking for bugs. If not, I usually lay down to read around 8. Also to keep my leg propped up so it doesn't swell.
Debussy's Arabesque No. 1 in E: