You are 21 years old if you were born on March 9, 2003.
You are 21 years 1 month, 2 weeks, and 3 days old or 253 months old or 1,102 weeks old or 7,719 days old or 185,256 hours old or 11,115,360 minutes old or 666,921,600 seconds old You were born on a Sunday.