What is the age at which the male child was to be circumcised?

Different cultures do it at different ages, if at all. In some cultures (like in the US) circumcision is done soon after birth, often before the baby even leaves the hospital. In other cultures it is supposed to be a specific number of days after birth. While in some, it is a rite of passage and is performed on children as they enter puberty. And in some countries, there is a movement for adults to undergo circumcision because of the health benefits.