You are 121 years old if you were born on March 21, 1903.
You are 121 years 1 week, and 1 day old or 1452 months old or 6,314 weeks old or 44,204 days old or 1,060,896 hours old or 63,653,760 minutes old or 3,819,225,600 seconds old You were born on a Saturday.