You are 20 years old if you were born on January 9, 2004.
You are 20 years 3 months, 2 weeks, and 2 days old or 243 months old or 1,058 weeks old or 7,412 days old or 177,888 hours old or 10,673,280 minutes old or 640,396,800 seconds old You were born on a Friday.