not be all morning
To not take a long time in the morning, or all the hours in the morning. Usually used in the present tense to convey annoyance. How long is this repair job going to take? It better not be all morning! Run this to the post office, but don't be all morning, OK?
(Good) morning.
the standard greeting phrase used any time between midnight and noon. Bob: Good morning. Bill: Good morning, Bob. You sure get up early!