You are 40 years old if you were born on September 1, 1983.
You are 40 years 7 months, 3 weeks, and 4 days old or 487 months old or 2,121 weeks old or 14,848 days old or 356,352 hours old or 21,381,120 minutes old or 1,282,867,200 seconds old You were born on a Thursday.