You are 39 years old if you were born on December 17, 1984.
You are 39 years 3 months, 1 week, and 5 days old or 471 months old or 2,049 weeks old or 14,347 days old or 344,328 hours old or 20,659,680 minutes old or 1,239,580,800 seconds old You were born on a Monday.