21:20
So, my experience with learning D&D 3.5: It was my first tabletop RPG system. I was given the 3.0 books to read over a winter break at college, and when I returned for the spring I started my first game--running it as a dungeon master, using the 3.5 books.
Half the players in my group had some small experience with other RPGs, but none of them were experienced with 3.0 or 3.5, so we were all stumbling along together. I mostly ignored the rules I didn't know/understand yet, fudged things during the game and looked them up later.
After that I brought a lot of new players into RPGs and my strategy for heavy systems like 3.5 is to give them a simple pre-built character for the first session or two while I help them with the basic rules, and then I walk them through making their own character.
Many groups will be happy to hold your hand as you learn the game. Some will be more sink-and-swim. The 3.5 Player's Handbook is useful, but can be a little overwhelming, so take it in chunks and ask lots of questions--of your group, in this chat, and do rpg.se site searches.
But I'm living proof you can teach yourself the game from the books and little else, so there's that.
(NB: a lot of RPG groups have house rules and individual conventions/traditions which vary from the rules text. Sometimes it's on purpose, and sometimes it's because they misread or were mistaught.)