it..
For the first part of your question: 24 Hours
I\'m still trying to find answer to your second question.
Even after more than 4 years now, I still don\'t know the answer
to it!??? Just kidding....
In NSC, there is nothing called **after FP**.
It takes about 1 year from your Receipt Date of I485 no matter when
you did your FP. ( No difference between persons did FP on 3rd month and 11th month )