Sunrise?

The mornings are dark
It's hard to determine if
This is the time I should
Get up. There is no cue
In the sky. I do rise early
But I don't want to be up
Aforehand. There's early
Then there's too early I
Want sun up to provide
My clue, to guide me to
Action. There is no light.
The mornings are dark.
Is it darkest before dawn?