You are 39 years old if you were born on December 11, 1984.
You are 39 years 4 months, 1 week, and 5 days old or 472 months old or 2,054 weeks old or 14,378 days old or 345,072 hours old or 20,704,320 minutes old or 1,242,259,200 seconds old You were born on a Tuesday.