You are 40 years old if you were born on December 8, 1983.
You are 40 years 4 months, 2 weeks, and 3 days old or 484 months old or 2,107 weeks old or 14,749 days old or 353,976 hours old or 21,238,560 minutes old or 1,274,313,600 seconds old You were born on a Thursday.