Is the universe about 14 million light-years old?

Answer 1

A light year is a measure of distance, not of time. The universe is, according to our current hypotheses, about 15 billion years old.

However, please note that every time throughout history that "science" has declared the age of the Earth, of the Sun, or of the Universe, they have invariably been wrong. Things always turn out to be vastly older than we used to think. We used to think that the Earth was a few thousand years old, then a few million years old, and now we think the Earth is about 4.5 billion years old.

Have we finally gotten it right? Ask me in 100 years.