age.js

// http://unwieldy.net

var bday = new Date(1992, 11, 17, 07, 27),
    ones = ['', 'one', 'two', 'three', 'four', 'five',
            'six', 'seven', 'eight', 'nine'],
    tens = ['', '', 'twenty', 'thirty', 'forty', 'fifty', 'sixty',
	      'seventy', 'eighty', 'ninety'];

var days = (new Date() - bday) / 1000 / 60 / 60 / 24, 
    hours = days % 24 % 365.25;

console.log(Math.floor(days));
console.log(Math.floor(hours));