INT 1A,3 - Set Time on Real Time Clock (XT 286,AT,PS/2)

	AH = 03
	CH = hours in BCD
	CL = minutes in BCD
	DH = seconds in BCD
	DL = 1 if daylight savings time option
	   = 0 if standard time


	returns nothing


	- clock values must be in BCD
	- see	RTC