My memory may be playing tricks with me, but if I recall correctly you were once told after logging in how many times you'd logged in, and how long you've been logged in for.
I also recall Bishop saying once (in defense of shortening the EoWCF period) that times and duration logged in drops dramatically during the EoWCF, so I assume that this information is available in some capacity.
If that's the case, would it be possible to display in-game the number of times and length of time logged in?