Sure you could wait until nine, but give one good reason?
Lazy neighbors?
Stroke in your sleep?
I didn't think so.
You were out there doing what most men would have enjoyed... well, never. Trimming hedges.
Pulling weeds.
Raking last year's leaves.
...all mulched into a glorious lawn you mulched into a mulchy goodness for all to see.
So here's to you, Mr. Seven A.M. Lawn Mower Guy. You own your block until this evening.