C# calculate accurate age

Question

anyone know how to get the age based on a date(birthdate)

im thinking of something like this

string age = DateTime.Now.GetAccurateAge();

Answer 1

I find this the most accurate.

            private int GetAge(DateTime birthDate)
            {
                TimeSpan ageTimeSpan = DateTime.UtcNow.Subtract(birthDate);
                int age = new DateTime(ageTimeSpan.Ticks).Year;
                return age;
            }