The sun just hangs out there like a nucleus while earth spins around it like an excited proton, constantly changing the face it shows to the sun. It would be the earth which tells time. The sun doesn't care. We slow down the earth to cause each face to be exposed to the sun longer. This causes the days to be longer too.
:o Please tell me you don't believe this. When you move 8PM up, 8AM moves up as well. You do realize that, right?
You're not doing it right. When you move 8PM up you move 8AM back. That is where the extra hour of sunlight comes from. We steal it from the night.