I can't really think of a reason to use it during the day, unless you wanted a really grainy picture, but then you run into the problem of not being able to stop down enough to even get a picture. You would probably need a neutral ensity filter. You might use ISO 800 film to shoot sports and get really fast shutter speeds in the range of 1/2000 to 1/4000.
What mode you use on your camera doesn't matter. Shooting any medium, be it film or digital is the same. You have to meter your light and pick the best exposure for the scene.