INT 1A - TIME - SET REAL-TIME CLOCK DATE (AT,XT286,PS)
AH = 05h
CH = century (BCD)
CL = year (BCD)
DH = month (BCD)
DL = day (BCD)
SeeAlso: INT 21/AH=2Bh

See also: 1A04

1A05 - TIME - SET REAL-TIME CLOCK DATE (AT,XT286,PS)