INT F7 - FSBBS 2.0 - TIMER FUNCTIONS                                            
	AH = 05h
	AL = function
	    00h get time remaining
		Return: DX = number of minutes remaining
	    01h get current time
		Return: DS:DX -> 8-character time string
	    02h increment time
		DX = number of additional minutes
	    03h decrement time
		DX = number of minutes
SeeAlso: AH=06h