Currently rating date restrictions work on the "time created" of the item being rated. For example if you are rating forum posts and you set up a date restriction window you can rate any forum post created during that window. The current time is not considered.

(this isnt real code)

if ($theitem->timecreated > $assesstimestart || $theitem->timecreated < $assesstimefinish) {

    //allow rating submission

}

This makes sense if, for example, students are creating items during an assessable period then a teacher is going to come in and rate only the items created during that assessable window.

It would be good to be able set a time window during which ratings could be submitted without consideration of when the item was created.

(this also isnt real code)

if (time() > $assesstimestart || time() < $assesstimefinish) {

    //allow rating submission

}

That would allow items to be created then students could come in and submit ratings during a defined peer assessment period.

Ideally we would allow toggling between the two behaviours at a per activity level so that a course could contain both kinds of activities.