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====== Int 21H, AH=2BH ======

===== Version =====

1 and higher

===== Brief =====

SET SYSTEM DATE

===== Family API =====


===== Input =====

        AH = 2Bh
        CX = year (1980-2099)
        DH = month (1-12)
        DL = day (1-31)

===== Return =====

 AL = status
            00h successful
            FFh invalid date, system date unchanged

===== Notes =====

  DOS 3.3+ also sets CMOS clock; due to the limitations of the CLOCK$
          driver interface, the CMOS time is also updated to the current
          DOS time (which is the BIOS time-of-day clock with the default
          CLOCK$ driver)


===== See also =====

 AH=2Ah,AH=2Dh,INT 1A/AH=05h

===== Note =====

Text based on [[http://www.cs.cmu.edu/~ralf/files.html|Ralf Brown Interrupt List Release 61]]

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