You are 104 years old if you were born on December 9, 1919.
You are 104 years 4 months, 1 week, and 4 days old or 1252 months old or 5,445 weeks old or 38,119 days old or 914,856 hours old or 54,891,360 minutes old or 3,293,481,600 seconds old You were born on a Tuesday.