Int 15 Fn 5380  - Apm Sl Enhanced V1.0 - Set Calendar Event Time           [p]

   AX = 5380h
   BH = 09h
   CH = hours
   CL = minutes
   SI = seconds

Return: CF clear if successful
   CF set on error
       AH = error code (see #0409)
Desc:  sets calendar event time in CMOS ram, enables Alarm resume

See Also: AX=5380h/BH=08h,AX=5380h/BH=7Fh