You are 40 years old if you were born on January 3, 1984.
You are 40 years 3 months, 3 weeks, and 1 day old or 483 months old or 2,103 weeks old or 14,723 days old or 353,352 hours old or 21,201,120 minutes old or 1,272,067,200 seconds old You were born on a Tuesday.