It could take 2 months to 2 years. It all depends on your learning ability. Landing a job requires a little luck and the right connections. Who will see you with out a qaulifying certificate? You have to test your luck and look around. If you have a good portfolio and have the knowledge to answer interview questions correctly then you will be a good candidate. However a certifiable degree will better your chances.
Many people over at free code camp are getting highered after completing the courses.
Freecodecamp.com is free check it out.