DateTime format problem in Csharp

Often we face this problem, there are may example on google, but still i feel like sharing this with you, this is how you can play with any date format in any culture.

DateTime dob = DateTime.Now.AddYears(-18);

 if (!string.IsNullOrEmpty(txtDOB.Text))
{
      IFormatProvider culture = new CultureInfo("en-US", true); // this is how you can set any culture you want !
  dob = DateTime.ParseExact(txtDOB.Text, "dd/MM/yyyy", culture);
 }

profile.DOB = dob;