Is work experience point calculate on ACS date , EOI date

In my Acs letter it is mentioned that experience after 28may 2012 valid for the ANZSCO code. According to it my experience is 7 years 9 months.

Please let me know the End date of my experience in EOI.
and also if Filed EOI after 3 months which make my experience 8 years
How many points I will get?

Please read my earlier answer here: