In MarkZ 

We have always been told the ideal window was a Saturday Night between 11 pm est to 2-3 AM est…This is the ideal time because of the lack of numbers going through the financial system. It’s a quiet time and the easiest time to flag any nefarious things going on….We have always been looking at this timeframe. Yes they could do it other times….but Saturday night is the one that makes the most sense…With the QDS system they do have more flexibility then they had before.