You are 40 years old if you were born on September 13, 1983.
You are 40 years 7 months, 1 week, and 5 days old or 487 months old or 2,119 weeks old or 14,835 days old or 356,040 hours old or 21,362,400 minutes old or 1,281,744,000 seconds old You were born on a Tuesday.