You are 40 years old if you were born on January 15, 1984.
You are 40 years 3 months, 1 week, and 1 day old or 483 months old or 2,101 weeks old or 14,709 days old or 353,016 hours old or 21,180,960 minutes old or 1,270,857,600 seconds old You were born on a Sunday.