Answer:
The time between daylight and darkness when blood drinkers like to come out
My days are numbered. What am I?
I am all around yet to me you are half blind. Sunlight makes me invisible and difficult to find.
I'm a precious stone in a pack of cards. What am I?
I am commonly ate before I'm born and after I'm dead.
Both old people and owls are said to be possessing this trait