You are 123 years old if you were born on July 9, 1900.
You are 123 years 9 months, and 2 weeks old or 1485 months old or 6,459 weeks old or 45,214 days old or 1,085,136 hours old or 65,108,160 minutes old or 3,906,489,600 seconds old You were born on a Monday.