Today
This answer is only valid on 30 may 2013; on 31 May 2013 the answer will require 9 letters. T-O-D-A-Y.
Written in Roman numerals, it would be XXX V MMXIII. This uses I, M, V & X - but that's only four letters.
Heute
ACHDB
Could it be: TODAY
may 30th 2013
From today, the 26th of March 2013, it is 126 days to the the 30th of July 2013. This answer will change every day.
You cannot because it is an ephemera question and it in 22 May now. You'll just have to wait until 2012.
30th May.30th May.30th May.30th May.30th May.30th May.30th May.30th May.30th May.30th May.30th May.
The moon was a Third Quarter moon in 30th May, 2013.
The answer is: Today(As in the day of the date).
Considering when the question was asked, the answer is "today."