10:00 p.m.
anytime
Children should not go to bed when they want. Have a set time (Allow a little "wiggle room" too, for say 9-9:10) Make sure you correspond the time with the age. Older children (13, etc) Can go to sleep later than a 6 year old. Etc.
10 year olds should go to bed around 10:00. It is important for them to get sleep but when you get older you might have stuff to do that ends late. Then you need time to do other things like homework.
I think that a normal bed time for an 11 year old is 9:30 or 10:00
around 9.00pm, if watching a movie/at a party/ sleepover bed time can be expanded...
10- 10.30pm
7:30
8.30
7:00
8:30
Between 9-10pm.
8:30PM