You are 45 years old if you were born on December 5, 1978.
You are 45 years 3 months, 3 weeks, and 2 days old or 543 months old or 2,364 weeks old or 16,550 days old or 397,200 hours old or 23,832,000 minutes old or 1,429,920,000 seconds old You were born on a Tuesday.