For your easy reference, the following is a list of weeks and years with their corresponding date:
13 Sept 2015 – 24th Sunday in Ordinary Time Year B
14 Sept 2015 – Feast of the Exaltation of the Holy Cross
15 Sept 2015 – Our Lady of Sorrows, Memorial
16 Sept 2015 – Wednesday of Week 24 Year 1
17 Sept 2015 – Thursday of Week 24 Year 1
18 Sept 2015 – Friday of Week 24 Year 1