For your easy reference, the following is a list of weeks and years with their corresponding date:
6 Sept 2015 – 23rd Sunday in Ordinary Time Year B
7 Sept 2015 – Monday of Week 23 Year 1
8 Sept 2015 – Birthday of the Blessed Virgin Mary, Feast
9 Sept 2015 – Wednesday of Week 23 Year 1
10 Sept 2015 – Thursday of Week 23 Year 1
11 Sept 2015 – Friday of Week 23 Year 1