Use the Print After field to set the time and date when
  your print job will be printed.

  You can use the Print After option to delay printing
  large jobs until after work hours. If you do not enter
  a time in the Print After field, the job is immediately
  submitted to the print queue.

  You must specify the date using the format day-month-
  year and the time using the format hour:minute. (For
  example, 23-SEP-1989 17:30.) The syntax is sometimes
  specified as follows:

           dd-mmm-yyyy hh:mm

  where:

  dd    Specifies an integer in the range 1 to 31.
  mmm   Specifies the month as: JAN, FEB, MAR, APR, MAY,
        JUN, JUL, AUG, SEP, OCT, NOV, or DEC.
  yyyy  Specifies the year, which must be an integer in
        the range 1858 to 9999.
  hh    Specifies the hour, which must be an integer in
        the range 0 to 23.
  mm    Specifies the minute, which must be an integer in
        the range 0 to 59.