Usually 8am here.
As a child it was around 2am, then back to bed and we'd all sleep til late.
My parents had barely gone to bed when I'd wake them up! My sisters, once they'd hit their teens, wanted to sleep until 7/8am but I refused and demanded we carry on the 2am tradition. And as the baby of the family (plus my mum was just as happy as me to get up early!) we stuck to doing it my way.
Sorry siblings. 
I think my mum thinks I'm terrible for making mine wait until 8am!
. They do sleep until then, I don't make them wait if they've woken earlier.
So, how does it work in your house?