You are 21 years old if you were born on January 13, 2003.
You are 21 years 3 months, 1 week, and 5 days old or 255 months old or 1,110 weeks old or 7,773 days old or 186,552 hours old or 11,193,120 minutes old or 671,587,200 seconds old You were born on a Monday.