Both events are live from Rome, at Vatican Player, http://www.vatican.va/video/ and I believe are also covered live by several Catholic televisions in the USA, Canada, and other countries.

1. Missa pro Eligendo Pontifice / Mass for the Election of the Roman Pontiff

The Cardinals present in Rome, all the Cardinal-electors that will be entering the Conclave, will first gather for a Solemn Mass at St. Peter’s Basilica on Tuesday morning, 12 March 2013 at 10 am Rome time (CET or UTC+1). The Mass will be lead by the Cardinal Dean of the College of Cardinals, Cardinal Angelo Sodano, who is a non-elector.

Time in other parts of the world :

Tuesday, 12 March 2013 at 9 am UTC // 4 am EST // 1 am PST // 4 pm WIB or UTC+7 // 5 pm Singapore time or UTC+8

2. Beginning of the Conclave : Entry of the Cardinal-electors into the Sistine Chapel

The Cardinal-electors will assemble in Pauline Chapel on Tuesday afternoon, and the event will begin live at 4.30 pm Rome time (CET or UTC+1). The Cardinals will wear their full choir dress and then will proceed into the Sistine Chapel while singing the hymn Veni Creator Spiritus to invoke the Holy Spirit.

Then in the Sistine Chapel, the Cardinal-electors will take their oath, beginning with the senior Cardinal Bishop-elector, Cardinal Giovanni Batista Re, who leads the Conclave, and then the famous ‘extra omnes’ or ‘everybody else out’ order will be said by the Master of Papal Liturgical Celebrations, Monsignor Guido Marini.

Time in other parts of the world :

Tuesday, 12 March 2013 at 3.30 pm UTC // 10.30 am EST // 7.30 am PST // 11.30 pm WIB or UTC+7 //  Wednesday, 00.30 am Singapore time or UTC+8