From 0600 to 2200....ride. Let the miles take care of themselves.
Long distance riding is about logging miles not sight seeing.
I am a realist...not a doubter....good luck on doing this day after day in the heat but as an avid night rider I know you have to be on your game and not tired covering long distances at night or it will end badly. Better to stick to the daylight hours and there will be a lot of them in the summer.
But you do as you see fit