Step event:
{
    // Time counts up, then at 6000 returns to 0
    time += 1;
    time = time mod 60000;

	var _min = min(a, b);
	var _max = max(a, b);
	difference = abs(_max-_min) mod 60000;
}

Key Press - S event:
{
    time_saved = time;
}