Getting date difference in Years,Month and Days.

public string DateDiff(DateTime Dt1, DateTime Dt2)
{
        TimeSpan ltsT1 = Dt2 - Dt1;
        Decimal D1 = Convert.ToDecimal(ltsT1.TotalDays) / 365.25M;
        Decimal D2 = Decimal.Floor(D1);
        Decimal M1 = (D1 - D2) * 12;
        Decimal M2 = Decimal.Floor(M1);
        Decimal Day1 = (M1 - M2) * 24;
        Decimal Day2 = Decimal.Floor(Day1);
        return D2 + " Years " + M2 + " Months " + Day2 + " Days ";
}      

To use it,i have added 5 months in current date.
string dt = DateDiff(DateTime.Now, DateTime.Now.AddMonths(5));