public String time() {
		seconds++;
		if(seconds / 2 == 60) {
			minutes++;
			seconds = 0;
			if(minutes == 60) {
				hours++;
				minutes = 0;
			}
		}
		String h;
		String m;
		String s;
		if (seconds / 2 < 10) {
			s = "0" + seconds / 2;
		} else {
			s = "" + seconds / 2;
		}
		if (minutes < 10) {
			m = "0" + minutes;
		} else {
			m = "" + minutes;
		}
		if (hours < 10) {
			h = "0" + hours;
		} else {
			h = "" + hours;
		}
		return h + ":" + m + ":" + s;
	}