Earthly branches have 12 so divide 37 by 12, the remainder is 1, from unitary backstepping the first, is unitary. So this year is 37 years old Ding Younian
There are 12 Earthly Branches, so 37 divided by 12 with a remainder of 1, from the unitary backstepping first or unitary. So 37-year-old in this life is Ding Year