Interested in getting Real Estate License

[Christopher M Miller]

Hi, I'm Chris and live in the San Antonio area.  

I currently work full time in IT, however I was thinking about starting a side-hustle and that was purchasing real estate for passive income.  I will admit, I don't know much about doing this.  I've started to read blogs on this website along with Brandon Turner's book. 

I was thinking about making up for this lack of knowledge was to get a real estate license, to help me have a better understanding.  Just wondering how long it typically takes to get something like this and to maintain it?  Also would it be transferable if I were to move out of state, say to California?

thanks