What date did Niall Horan Louis Tomlinson Liam Payne Zayn Malik and harry styles audition for x factor?

The dates on which Niall Horan, Louis Tomlinson, Liam Payne, Zayn Malik, and Harry Styles auditioned for the X Factor are as follows:

Niall Horan: July 17, 2010

Louis Tomlinson: July 24, 2010

Liam Payne: July 28, 2010

Zayn Malik: July 28, 2010

Harry Styles: September 11, 2010