What does a "hard stand departure" mean? I am reading a table explaining how to plan multiple diversion returns from an individual station:


  
  widebody gate departures - xx minutes 
  narrow body gate departures - xx minutes 
  all hard stand departures - xx minutes
  


I am not a native English speaker and do not understand what a "hard stand departure" is.

Could anybody please explain this term?
A hardstand is a type of parking spot separate from the terminal.  Wide/narrow body gates are associated with the connection to the terminal, where a hardstand is just an area of pavement reinforced for heavy vehicles (or airplanes).