title: Victory Chart x-axis scale not working for Dates
body: <p>I have an Area chart in Victory where the x-axis has dates.
  I want to customize the x-axis Label and have created a CustomLabel component to calculate the x-axis scale and display "LABEL" below the ticks. 
  But for some reason, the scale is not calculated correctly for the Date Object.</p>
  
  <p>Please let me know what I am doing wrong here. </p>
  
  <p>Code here - <a href="https://codesandbox.io/s/3203z3n7r6" rel="nofollow noreferrer">https://codesandbox.io/s/3203z3n7r6</a></p>