Not trying to bake a cake here.
I almost didn't post this question because I knew I would get a "well it all depends" answer. Ask me any question about how long it takes to learn something even if it's something I know nothing about, and I can reply with "It depends on time invested, natural talent,etc", and I'll be right and will have given nothing in the way of an answer.
I didn't think the word proficcient needed to be broken down, but here it goes: Ability to communicate effectively. I guess I need to go ahead and break "communicate" down also and here it is: Interaction using vocal sounds that is understood by the listener and the big idea of those sounds when summated is understood.
I'll never master spanish and have no aspirations of doing so. . I haven't mastered english either as I do not know all the definitions in the english dictionary.
I would like to know an approximate time it would take for me to communicate in spanish as effectively as the average english-speaking 2nd grader communicates in english.
Now, with 1 hour of study/day, 365 days/year and interacting with native speakers in short sessions (casual conversation of approximately 2 mins with each person) at a rate of 5 people per day, 5 days/week, and 52 weeks/year), how long will it take me to communicate effectively?
Assume an average humidity of 50%