the amount of time that an activity may be delayed from its early start without delaying the project finish date, the amount of time an activity, network path, or project can be delayed from the early start without changing the completion date of the project, vaba ajahulk mingi tegevuse, omaette tegvuste jada või terve projekti alguse edasilükkamiseks varases staadiumis ilma et see projekti lõpetamise tähtaega muudaks