The programme of adult formation in the faith is known as the Rite of Christian Initiation of Adults (RCIA).
This programme provides a wonderful series of steps and stages that can lead to baptism, confirmation and Eucharist (Communion).
Usually adult baptisms (or 'Reception' if you were already baptised in another Christian denomination) take place during the Easter Vigil Mass early on Easter Sunday morning. It is a wonderful and moving ceremony that coincides with the first Mass of the Resurrection on Easter Sunday morning.
If you are interested in becoming a Catholic, or knowing more about the Catholic faith, you can: