You are 40 years old if you were born on September 8, 1983.
You are 40 years 6 months, 2 weeks, and 6 days old or 486 months old or 2,116 weeks old or 14,812 days old or 355,488 hours old or 21,329,280 minutes old or 1,279,756,800 seconds old You were born on a Thursday.