Hide Items in a List View older then a specific date
Sometimes you don't want to delete old files in a document library / list but don't want to show them to the user (because you only want to show up to date items).
You can specify this in the View (Modify Shared Web Part / Modify this View or Modify this View in a Listview) and then navigate to the section filter. If you only want to show items created in the last 30 days (= hide older items then 30 days / one month). You have to apply the following filter:
Note that you can change the numer to your own days.