You are 45 years old if you were born on March 12, 1979.
You are 45 years 1 month, 3 weeks, and 4 days old or 542 months old or 2,356 weeks old or 16,493 days old or 395,832 hours old or 23,749,920 minutes old or 1,424,995,200 seconds old You were born on a Monday.