I recall Hardy's Tess of the Durbervilles commenting that, every year, we live through the date on which we'll die, but we never know or notice it. An odd thought. If you do want to know the date, try the Death Clock. It's only a bit of fun and not at all scientific, as far as I can see. So don't be spooked by it. To discover how much longer you've got, click on The Death Clock