How long does it take to learn bridge?

I am often asked by bridge students, "How long does it take to learn bridge?". Now that is a difficult question! My usual answer is that for most people who just want to come to a class once a week and begin to practice play, it should take about a year to go through the "Standard English ACOL foundation system" bidding. That does not, however, mean that you will remember everything about it. As you play more, you will remember some parts of the system better than others and will eventually know most of it.
I always make the proviso that someone may join my class who is not only a genius but goes to bed with a bridge book every night and can be a competent player in a few months. The reality is you can take as long as you like to learn. Just enjoy it!