Steve,
I spend between at least 3-4 hours each day studying languages, namely Spanish, Portuguese, French, and German. The time is split between, listening to audio while walking, LingQing [Which is very addictive 
] , reading and practicing Spanish with my Friends. My main emphasis at this point is Spanish.
I think one can learn vast amounts of knowledge in 3 months, not fluency but enough to speak well, but that depends on the person, native language, and language learned.