INT 21 - DOS 1+ - GET SYSTEM DATE                                               
	AH = 2Ah
Return: CX = year (1980-2099)
	DH = month
	DL = day
---DOS 1.10+---
	AL = day of week (00h=Sunday)
SeeAlso: AH=2Bh"DOS",AH=2Ch,AH=E7h"Novell",INT 1A/AH=04h,INT 2F/AX=120Dh