You are 34 years old if you were born on December 9, 1989.
You are 34 years 4 months, 1 week, and 2 days old or 412 months old or 1,792 weeks old or 12,549 days old or 301,176 hours old or 18,070,560 minutes old or 1,084,233,600 seconds old You were born on a Saturday.