It's generally a three semester to a full two year sequence at most universities. You can of course go faster or slower depending on your own capacity to self-study and learn, but most bright people will probably fall somewhere in that spread to get a solid grasp of the total contents.
That said, it's always helpful at first to skim through and get a surface understanding of the whole picture before you dive in and try to understand it all. You can probably complete a surface scan like that in a few weeks or months. I studied these becomes along with my high school physics course and completed the books in about a year, but I was spending double the usual amount of time on this stuff. As a high school student, I didn't have anything better to do, but as an adult I'd expect it to take me two dedicated years.
That said, it's always helpful at first to skim through and get a surface understanding of the whole picture before you dive in and try to understand it all. You can probably complete a surface scan like that in a few weeks or months. I studied these becomes along with my high school physics course and completed the books in about a year, but I was spending double the usual amount of time on this stuff. As a high school student, I didn't have anything better to do, but as an adult I'd expect it to take me two dedicated years.