We do not give official certificates (like IELTS or TOEFL scores).
Upon request, we can give you a document with the number of hours of English class you completed during one year and your current level of English (according to our Adult Basic Education English Learner scale).
The time it takes is different for each person. Some factors that determine how long it takes are your beginning level and how often you attend class. Typically, the more a person comes to class, the faster they finish.