You are 40 years old if you were born on May 12, 1983.
You are 40 years 10 months, 2 weeks, and 3 days old or 490 months old or 2,133 weeks old or 14,932 days old or 358,368 hours old or 21,502,080 minutes old or 1,290,124,800 seconds old You were born on a Thursday.