As it pertains to both science and religion do "years" in the Bible equal the same as the calendar years we currently follow?

I learned briefly about the worlds calendar set up in art history 2. But we only barely touched on the subject.

When people argue about the age of the Earth I tend to wonder if there is some sort of possible mix up within the bible in explaining the dates.

You know, it’s widely thought that Earth is about 4.6 billion years old but the Bible teaches the Earth is around what? Several thousand years old only?

Also this zircon is dated back to 4.4 billion years old with two methods of testing

Have a gander