Last year, it looks like F! was typically at 9:00 pm and 10:30 pm, with fireworks at 9:30 pm. Usually, F! is scheduled so that it is ending just before fireworks starts, that way guests that watched the first F! can watch the fireworks from the same area. So, I would guess that fireworks will be at 9:30 pm (or thereabout) when F! is being presented. When I looked at the
schedule that's been posted so far, it appears that fireworks are at 9:30 pm regardless of whether there is a F! or not.