You are 40 years old if you were born on January 1, 1984.
You are 40 years 3 months, 2 weeks, and 5 days old or 483 months old or 2,102 weeks old or 14,720 days old or 353,280 hours old or 21,196,800 minutes old or 1,271,808,000 seconds old You were born on a Sunday.