twelve o'clock
`` The carpet-brush is in the corner . Good-evening . '' As his father anticipated , Robert was soon tired of the sentry game in these new circumstances , and long before the night had half worn away he wished himself safely undressed and in his own comfortable bed . At half-past twelve o'clock he felt as if he could bear it no longer , and knocked at the Captain 's door . `` Who goes there ? '' said the Captain . `` May n't I go to bed , please ? ''