Unless that happens to be the date on which you are asking the question you can say 'today' otherwise you cannot
This question was asked on 23rd September 2011, and so at the time of asking a valid answer would be "today."
To write 24 January 2014 in 5 letters without using numbers kindly write 24.1.14.
,i
I-IX-MMXII
AUXXV
You cannot (answer dated 10 September 2011).
Today
Today
It is: TODAY
Today
A date
"today"