#region masabekerja
int lama;
DateTime d = Convert.ToDateTime(txtTanggalStart.Text);
string s = d.ToString(“dd/MM/yyyy”);
// Convert date time in string (s) to DateTime (Todate) data type
DateTime Todate = DateTime.Parse(s, CultureInfo.CreateSpecificCulture(“en-AU”));
// Convert entered date string (TextBox1.Text) to DateTime (givenDate) Data Type
DateTime givenDate = DateTime.Parse(queryPrem.Kary_TglMskKrja.ToString());
// Count total days
double days = Todate.Subtract(givenDate).Days;
// Convert days to year and display into Label.Text
lama = Convert.ToInt32(Math.Floor(days / 365.24219));
#endregion