You are 44 years old if you were born on December 21, 1979.
You are 44 years 3 months, 1 week, and 1 day old or 531 months old or 2,310 weeks old or 16,170 days old or 388,080 hours old or 23,284,800 minutes old or 1,397,088,000 seconds old You were born on a Friday.