How accurate is the 'Time Lived' script?

The script uses the user's system clock and standard JavaScript date math. It is highly accurate for calculating total days and years passed since a specific birthdate.

Can I use this for other date milestones?

Yes! You can adapt the logic to calculate the time passed since a wedding, a business launch, or any other historical event.

Time Lived v1.0

Discover your personal timeline. This fun script uses JavaScript to calculate exactly how many years and days a person has lived, presenting the results in a personalized alert box.

Life Experience Calculator

Birth Month (1-12)

Birth Day (1-31)

Birth Year (YYYY)

Copy the Script

<script>
function calculateLife() {
  var bDay = document.getElementById('bDay').value;
  var bMonth = document.getElementById('bMonth').value - 1;
  var bYear = document.getElementById('bYear').value;
  
  var today = new Date();
  var birth = new Date(bYear, bMonth, bDay);
  
  var diff = today.getTime() - birth.getTime();
  var days = Math.floor(diff / (1000 * 60 * 60 * 24));
  var years = Math.floor(days / 365.25);
  
  alert("You have lived for approximately " + days + " days, which is about " + years + " years!");
}
</script>