The judges of the Superior Court may provide by rule for the times when the clerks’ offices shall be deemed to be open for the purpose of entering appearances, judgments of nonsuit or default for want of appearance and for filing pleadings, amendments to pleadings and written motions. Each office shall be open at least five days a week except during weeks which include a legal holiday. The clerks’ offices may be deemed to be open whether a judge is in attendance or not.