Monday, April 18
-4 a.m.: Cardinals celebrate a morning mass.
-10:30 a.m.: Cardinals process into the Sistine Chapel. They take their oath of secrecy and hear a meditation from a senior cardinal, then decide whether to take a first vote Monday or wait until Tuesday morning.
Tuesday, April 19
-1:30 a.m.: Cardinals celebrate mass in the hotel chapel.
-3 a.m.: Cardinals gather in Sistine Chapel for initial two rounds of balloting.
-6 a.m.: Approximate time of first smoke signal from Sistine Chapel. It will indicate whether a new pope has been chosen (white smoke) or no decision has been made (black smoke) in the first round of balloting. The smoke is from the burning of the secret ballots after each round of voting.
-10:00 a.m.: Cardinals return to the Sistine Chapel for two rounds of afternoon balloting.
-1 p.m.: Approximate time of smoke signal after second round of voting.
The rest of the days of the conclave are expected to follow Tuesday's schedule. The Vatican spokesman said smoke signals from burned ballot papers could likely be seen each day - unless a winner is elected on Monday in a first ballot.