For your easy reference, the following is a list of weeks and years with their corresponding date:
24 May 2015 – Pentecost – Mass of the Day
25 May 2015 – Monday of Week 8 Year 1
26 May 2015 – Tuesday of Week 8 Year 1
27 May 2015 – Wednesday of Week 8 Year 1
28 May 2015 – Thursday of Week 8 Year 1
29 May 2015 – Friday of Week 8 Year 1