You are 20 years old if you were born on February 29, 2004.
You are 20 years 1 month, 3 weeks, and 4 days old or 242 months old or 1,051 weeks old or 7,359 days old or 176,616 hours old or 10,596,960 minutes old or 635,817,600 seconds old You were born on a Sunday.