You are 36 years old if you were born on December 20, 1987.
You are 36 years 3 months, 1 week, and 2 days old or 435 months old or 1,892 weeks old or 13,249 days old or 317,976 hours old or 19,078,560 minutes old or 1,144,713,600 seconds old You were born on a Sunday.