public Time add (Time t)	{
	
		//System.out.println("Time.add() : " + this + " " + t);
		
		Time temp = new Time((byte)(this.day + t.getDay()), (byte)(this.hour + t.hour), (byte)(this.min + t.getMin()));
		
		temp.format();
		
		if (temp.day > 6)
			System.out.println("Time.add() : changed week" + temp + " " + t);
		
		temp.day = (byte)(temp.day % 7);
		
		return temp;
	}