At each hour of the day three supplementary strokes sound from the church bell of the convent. At this signal prioress, vocal mothers, professed nuns, lay-sisters, novices, postulants, interrupt what they are saying, what they are doing, or what they are thinking, and all say in unison if it is five o’clock, for instance, “At five o’clock and at all hours praised and adored be the most Holy Sacrament of the altar!” If it is eight o’clock, “At eight o’clock and at all hours!” and so on, according to the hour.