You are 40 years old if you were born on December 30, 1983.
You are 40 years 3 months, 3 weeks, and 4 days old or 484 months old or 2,103 weeks old or 14,726 days old or 353,424 hours old or 21,205,440 minutes old or 1,272,326,400 seconds old You were born on a Friday.