To solve this question we have to make deduct these 2 years. 2103 minus 1963 will give the answer.
You are 140 years old.
(1680 months are passed.)
From 1963 to 2103 there are 140 years. If you want to learn your age in 2103 (born in 1963) your age is 140.
Let's see what will be your age if you born +1 or -1 from that date.