This is... pretty self-explanatory. I, for one, would find it very useful for the purpose of journaling/dating letters/using Forgotten Realms calendar references if I could have a quick and easy way to check the current IG date.
(I know the date displays on your first log-in after a reset, I think, but I don't know of a way to recall it at will.)
An easy way to recall the date is by typing !d in #efu on IRC.
I agree that there should be a more straightforward way to access the date, though. Adding it to EFUSL would be a good idea.