You are 40 years old if you were born on September 9, 1983.
You are 40 years 7 months, 1 week, and 4 days old or 487 months old or 2,119 weeks old or 14,834 days old or 356,016 hours old or 21,360,960 minutes old or 1,281,657,600 seconds old You were born on a Friday.