For your easy reference, the following is a list of weeks and years with their corresponding date:
6 Dec 2015 – 2nd Sunday of Advent Year C
7 Dec 2015 – Monday of the 2nd Week of Advent
8 Dec 2015 – The Immaculate Conception of the Blessed Virgin Mary – Solemnity
9 Dec 2015 – Wednesday of the 2nd Week of Advent
10 Dec 2015 – Thursday of the 2nd Week of Advent
11 Dec 2015 – Friday of the 2nd Week of Advent