[Hoot Gibson]

I dont know, how old do you think it is?

It's within a few percent of what RV said. Nobody can nail it down any more precisely. Generally, when somebody demands proof of a claim, they have reason to believe that what has been claimed is incorrect.

4.5 to 4.6 billion years is the generally accepted age of the earth and scientists have used more than one method to reach that same conclusion. Of course, Creationists have a different opinion and choose to ignore the physical evidence that God has left us to study.