You are 120 years old if you were born on March 21, 1904.
You are 120 years 4 weeks, and 1 day old or 1441 months old or 6,265 weeks old or 43,859 days old or 1,052,616 hours old or 63,156,960 minutes old or 3,789,417,600 seconds old You were born on a Monday.