What do you mean by an indulgence, say, of forty days?

An indulgence of forty days means that the Church liberates us from that amount of expiation of our sins which would be equal to a forty days’ public penance in the early Church. It does not mean forty days less purgatory. Such an indulgence is called a partial indulgence.

Radio Replies Volume 1 by Rev. Dr. Leslie Rumble MSC and Rev. Charles Mortimer Carty