title: How to convert the integer date format into YYYYMMDD?
body: <p>Python and Matlab quite often have integer date representations as follows:</p>
  
  <p>733828.0
  733829.0
  733832.0
  733833.0
  733834.0
  733835.0
  733836.0
  733839.0
  733840.0
  733841.0</p>
  
  <p>these numbers correspond to some dates this year. Do you guys know which function can convert them back to YYYYMMDD format?</p>
  
  <p>thanks a million!</p>