well there is a priest in America and he claims that the world ended at 6 o'clock (11 o'clock in our time) so we should all die in about 10 hours ago. well that's wrong,(unless I'm in hell because I haven't met Rolf Harris yet have I?)
but if you do want to know how long you've got then the ancient Mayans predicted that we'll all die on the 31st of December next year so I'd start doing reckless things and enjoying yourself more if I were you!
although if want to believe some mad crazy girl to predict your time left on the planet you've come to the right place! I'd say: measure yourself, then take away 8.4 centimetres. times it by 3 and if your a girl take away the height of your dad and if your a boy take away the height of your mum. add on your age and then sing glory hallelujah (because it's funny) then dance like a chiken; now try to remember your number: that is the definate time that isn't how long you have left!
good bye!