When is bedtime for your 5- or 6-year-old?

We have Alexa (Amazon Echo) programed at 8pm to tell my 5yo to go to bed. That's typically when we start the routine. She's usually pretty tired so baths/showers and stories are quick. However, she sleeps with a flashlight next to her pillow and I know she reads her books in bed after I leave so who knows what time she is really falling asleep!

Ugh I hate to say it, but it ends up being between 8:30 and 9. Her bedtime mind you is 7:30, but our 5-year-old manages to stretch bedtime out way past that. She comes out of her room asking for more snacks or stories or snuggles. The excuses go on! I guess it is third child status?

Technically, our 6yo's bedtime is 8pm, but it tends to sneak past that on most nights - often due to getting the first two to bed late! He's definitely tired after school most days though and often could fall asleep earlier than 8 if I could get him there.

I aim for lights out at 8 pm and on average we hit that. My 6 year old does not sleep in, therefore every minute he is up past his bedtime is lost sleep for him.