the RCIA, Rites of Christian Initiation for Adults prescribes Easter as the normative time for receiving unbaptized adults into the Church through baptism, confirmation and first communion. Baptized Christians who are being received into full communion with the Catholic Church through profession of faith, confirmation and first communion may be received at Easter, when the priest who receives them has faculties to confirm, or at the date set by the bishop if he reserves confirmation for himself. The priest may be given faculties to confirm adults at other times if pastoral considerations warrant it.
Adult Catholics are normally confirmed by the bishop at the time and date he specifies.
The best thing for those preparing for reception into the Catholic Church is to ask their director what the plan is, and not try to compare with what is being done in other parishes or dioceses, or for other adults who may be studying along side you, because their circumstances might be quite different than yours.