When Do You Start Putting The Kids To Bed Early For School Again?

Back to school time in the 4-3-2! I've got 2 that will be going to school this year and I must say the struggle is real, with deciding when to start getting back to our 'school year bedtime routine.' During the summer, there is no such thing as a certain bedtime in our household because hello, it's summer, let them enjoy right? But now with school starting in just days...

when do you start putting them to bed at a certain time again? Two weeks before? One? The night before to get them used to going to bed at a certain time and waking them up early as well? In our household, we decided to do it a few days before. So trust, they have already started going to bed earlier, much to their dismay. lol How is it in your household? When do you start prepping the kids for school as far as establishing an early bedtime again?