For your easy reference, the following is a list of weeks and years with their corresponding date:
24 Dec 2016 – Christmas Eve – Midnight Mass
25 Dec 2016 – Christmas Day – Mass During the Day
26 Dec 2016 – Dec 26 – Saint Stephen, the first Martyr – Feast
27 Dec 2016 – Dec 27 – Saint John, Apostle, Evangelist – Feast
28 Dec 2016 – Dec 28 – The Holy Innocents, Martyrs – Feast
29 Dec 2016 – 5th day within the octave of Christmas
30 Dec 2016 – Holy Family