You are 40 years old if you were born on December 25, 1983.
You are 40 years 3 months, 4 weeks, and 2 days old or 484 months old or 2,104 weeks old or 14,731 days old or 353,544 hours old or 21,212,640 minutes old or 1,272,758,400 seconds old You were born on a Sunday.