This question is asked many many....many times a week, i will respond in the way that it has always been done.
"Your biography can take any amount of time to be approved it entirely depends on how busy Caliburn the bio checker is at the time please be patient this is not an overnight system."
On to my own reply it usually takes sort of between 5-7 days in my experience but please be patient and do not bother Caliburn or he will release his rage upon you and your eyes will break from the wall of text no jutsu.