Rome ( CNN ) -- Pope Francis will officially be inaugurated Tuesday as the leader of the world 's 1.2-billion member Catholic Church . Here 's what will happen at and around the Installation Mass : . 8:45-8:50 a.m. ( 3:45-3:50 a.m . ET ) Pope Francis leaves the Santa Marta residence , where cardinals stayed for the conclave and where he is living until the papal apartments are ready . He travels to St Peter 's Square , where the Inauguration Mass will take place . About 9:30 a.m. ( 4:30 a.m . ET ) The pope arrives at St Peter 's Square Sacristy ( the steps area ) . He will enter St Peter 's Basilica . He will visit St. Peter 's tomb inside St. Peter 's Basilica . He will be accompanied by the patriarchs of Catholic Oriental Churches , for a total of 10 people . The pope will pray there . In the tomb , deacons of the Church will collect two symbols of the papacy -- the fisherman 's ring and the pallium . From the tomb , the pope and cardinals will go in procession through the Basilica and into the Square , accompanied by the processional chant `` Laudes Regiae . '' ( `` Christ is King '' ) The deacons will carry the ring and pallium into St. Peter 's Square . Catholic tradition holds that St. Peter was martyred in the square , which was Nero 's Circus . Before the Mass starts , Cardinal Jean-Louis Tauran -- the protodeacon who announced the name of the new pope after white smoke last week -- ceremonially presents Pope Francis with the pallium . Cardinal Godfried Danneels -- the second-ranking cardinal among cardinal deacons , known as the protopriest -- d elivers a prayer . Cardinal Angelo Sodano , the dean of the College of Cardinals , gives the fisherman 's ring to Pope Francis . Six cardinals representing the College of Cardinals ( 2 cardinals per order ) take the pledge of obedience . About 10:00 a.m. ( 5 a.m . ET ) Inauguration Mass begins . It will be the Mass for St. Joseph 's Day ( officially called the Solemnity of St. Joseph ) . The Gospel reading will be in Greek . Five hundred priests will hand out Communion in St. Peter 's Square and in Via Conciliazione ( the road leading straight out from the Vatican towards the Castel Sant'Angelo liveshot location . ) The pope will have 180 co-celebrants for the Mass including all the cardinals still in Rome ( electors and non ) , the patriarchs , and also two priests : the Jesuit Superior General and the Franciscan order Superior General . The pope will give his homily in Italian and , as is his style , it probably will not follow the written text strictly , but will contain improvisations . 11:30 a.m. ( 6:30 a.m . ET ) The Mass is expected to wrap up . `` Te Deum '' is to be sung at the conclusion . After 11:30 a.m. ( 6:30 a.m . ET ) After the the Mass , the Pope will return to the Basilica and remove his vestment at the altar of the Pieta . He will proceed at Main altar where he 'll receive dignitaries and heads of state .
Pope Francis starts at the residence where he was for the conclave . He travels to St. Peter 's Square . The crowd is massive, and there are many people in front of him with cameras filming everything. The outdoor Mass begins afterward and is the Mass of St. Joseph .