Calculate age -- also see http://codepen.io/panicbus/pen/ZpmZrb
var today = new Date();
var pastDate = new Date("10-28-70");
function calcDate(date1, date2) {
var diff = Math.floor(date1.getTime() - date2.getTime());
var day = 1000 * 60 * 60 * 24;
var days = Math.floor(diff / day);
var minutes = Math.floor(days * 24 * 60);
var hours = Math.floor(days * 24);
var months = Math.floor(days / 31);
var years = Math.floor(days / 365);
var message;
message = "If you were born on: "
message += date2.toDateString()
message += " you are: " + minutes + " minutes old, "
message += hours + " hours old, "
message += days + " days old, "
message += months + " months old and "
message += years + " years old."
return message
}
answer = calcDate(today, pastDate);
console.log(answer)