You are 105 years old if you were born on December 9, 1918.
You are 105 years 4 months, 1 week, and 4 days old or 1264 months old or 5,497 weeks old or 38,484 days old or 923,616 hours old or 55,416,960 minutes old or 3,325,017,600 seconds old You were born on a Monday.