DOS Fn 2dH: Set DOS Time

                                                         Compatibility: 1.0+ 
 Expects: AH    2dH
          CH    hour (0 to 23)
          CL    minutes (0 to 59)
          DH    seconds (0 to 59)
          DL    hundredths of a second (0 to 99)
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 Returns: AL    0    if time was valid
                0ffH if time was not valid
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    Info: Sets the DOS system time.

Versions: ■ DOS 3.3+  On AT and PS/2 systems, this also sets the time in
            the battery-backed CMOS memory.

See Also: Fn 2cH (get time)
          Fn 2bH (set date)
          DOS Functions
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