Anyone interested in this sort of thing for their kids, I've found most hue lights to be too bright and I wanted a way more flexible scheduling ability. So I made my own and now sell them.
It does require any cloud besides ntp and just uses a local web interface. You can define relative events, like 15 minutes before bed is tv time, 5 minutes before is snack time, bed time is 8. If one night the kids are extra cranky and need sleep, simply adjust bed time and the others adjust too.
I've used em for years with my kids!