You are 123 years old if you were born on July 12, 1900.
You are 123 years 9 months, and 1 week old or 1485 months old or 6,458 weeks old or 45,207 days old or 1,084,968 hours old or 65,098,080 minutes old or 3,905,884,800 seconds old You were born on a Thursday.