This should be easy (I hope). Obtain for me the BIRTHDATE, TIME &
PLACE of contemporary, famous scholar/writer Ken Wilber (author of Up
from Eden etc). You must have all three for payment. Good luck!

I can only find the year of birth 1949 and the city Oklahoma City. 
There was a book written about him.  All this info is on this site. 
Perhaps an email to someone at this site will answer your question:

http://www.worldofkenwilber.com/

Bowler-ga

Time of birth is an item of information that is not generally offered
online. The vital statistics of well-known persons may include their
date of birth, but the exact time is seldom available unless a birth
certificate can be obtained.

He was born January 31, 1949 according to "Contemporary Authors".

Bowler-ga

wow, you have two of the three. Now you just need to nail the TIME of
birth, and you've got it!

3.42pm (PST)

Where's my ten bucks!

are you sure or did you just make this time up? If this is for real
and you can prove it, you get tthe ten bucks plus tip.

First of all roberto22-ga is not an official google answers researcher
so he cannot collect the money.  Secondly he probably made up the time
unless of course he personally knows Mr. Wilber.  That answer would
need to be confirmed with at least a mention of where he obtained the
information.  As pinkfreud-ga stated (who is a researcher) this
information is nearly impossible to find out unless you ask Mr. Wilber
directly or obtain a birth certificate for him.  You can try emailing
him through his website:

http://www.worldofkenwilber.com/

By the way here is another source stating his birthday as 1/31/49:
http://www.informationheadquarters.com/Calendar/January/January_31.shtml