You are 40 years old if you were born on January 5, 1984.
You are 40 years 2 months, 3 weeks, and 2 days old or 482 months old or 2,099 weeks old or 14,693 days old or 352,632 hours old or 21,157,920 minutes old or 1,269,475,200 seconds old You were born on a Thursday.