To solve this question we have to make deduct these 2 years. 2091 minus 1963 will give the answer.
You are 128 years old.
(1536 months are passed.)
From 1963 to 2091 there are 128 years. If you want to learn your age in 2091 (born in 1963) your age is 128.
Let's see what will be your age if you born +1 or -1 from that date.