You are 44 years old if you were born on December 9, 1979.
You are 44 years 4 months, 1 week, and 3 days old or 532 months old or 2,314 weeks old or 16,203 days old or 388,872 hours old or 23,332,320 minutes old or 1,399,939,200 seconds old You were born on a Sunday.