You are 36 years old if you were born on December 31, 1987.
You are 36 years 3 months, 2 weeks, and 5 days old or 436 months old or 1,894 weeks old or 13,259 days old or 318,216 hours old or 19,092,960 minutes old or 1,145,577,600 seconds old You were born on a Thursday.