Answer:
I am partially baked. I am not completely lit. I am a portion of the moon. I am lesser than full wit. I am a divider of the hour. I am not a total lie. I am a sibling through one parent.
Take it and you will lose or gain more than the others.
I am the beginning of the end and the end of time and space. I am essential to creation and I surround every place.
I belong to you but others use me more often than you do. What am I?
I am a pretty one, fluttering in the pale blue sky. Delicate, fragile on the wing, indeed I am a pretty thing. What am I?
I am owned by Old McDonald.