To solve this question we have to make deduct these 2 years. 2119 minus 1977 will give the answer.
You are 142 years old.
(1704 months are passed.)
From 1977 to 2119 there are 142 years. If you want to learn your age in 2119 (born in 1977) your age is 142.
Let's see what will be your age if you born +1 or -1 from that date.