You are 43 years old if you were born on December 31, 1980.
You are 43 years 3 months, 2 weeks, and 3 days old or 520 months old or 2,259 weeks old or 15,813 days old or 379,512 hours old or 22,770,720 minutes old or 1,366,243,200 seconds old You were born on a Wednesday.