[Orgmode] Is it possible to show an agenda item only if it's due?

[PT]

I have several items on my agenda which have a time
specification (e.g. 4pm), but it only means I should work on it
sometime after 4pm. It can even be 8pm when I actually deal with
the item.

So there is no need for me to see the item constantly on the
daily agenda, I'd like this item to appear only if I display the
agenda after 4pm. I don't want to see it before the given time,
because I can't work on it then, so it only clutters the view.

Is it possible to do this with org?