You are 19 years old if you were born on January 31, 2005.
You are 19 years 2 months, 2 weeks, and 4 days old or 231 months old or 1,002 weeks old or 7,017 days old or 168,408 hours old or 10,104,480 minutes old or 606,268,800 seconds old You were born on a Monday.