find time left in month.days unit between two dates(in YEAR.MONTH.DAY)

Please help me again on the problem shown on the attached file.(My excel sheet is attached in the post)

Thank you all very much in advance, I will give your all stars if you experts help give me the answers!



1. (Urgent)

Question: Formula to find remaining duration( in months or days unit) between two dates.
Detail: the two dates, are both in 3 separate cells as Y/M/D, (instead of the date in the 1 cell) , e.g
Today's Date: Y/M/D ( in 3 separate cells) : 2014(year)=A3, 2(month)=B3, 20(day)=C3
Previous Date:Y/M/D ( in 3 separate cells) : 2011(year)=B10, 3(month)=C10, 4(day)= D10

Answer:
with the rule of 3 years membership( 2014-2011 is 3 year period);
so to calculate the expiry clock(remaining duration) the remaining date for the two dates: is 0.39 in months, and 12 in days. but whats the excel formula for them?


The excel sheet is attached in this post, you can insert the formula in the sheet or in the post here.


2. ( Can reply later)
Problem: An auto update formula for today's date (in Y/M/D , 3 cell format)