You are 20 years old if you were born on September 15, 2003.
You are 20 years 7 months, 1 week, and 4 days old or 247 months old or 1,075 weeks old or 7,529 days old or 180,696 hours old or 10,841,760 minutes old or 650,505,600 seconds old You were born on a Monday.