"measured by bells, as once in nunneries"
by cm
Public DomainCloisters - Credit: Doris Ulmann

"The lives of these women are segmented by bells, little friendly bells that prod them from one prayerful activity to the next... The bells also signify the structure of a nun's life. Prayer without distraction is though to be purer prayer. The bells are reminders, or breaks between the sentences of their days, like fresh paragraphs."

from What's Life Like for Nuns in a Cloister

Eight sets of prayers punctuate the nun's day (approximate times): Matins (2am), Lauds (5am), Prime (6am), Terce (9 am), Sext (noon), Nones (3 pm),Vespers (5pm), Compline (6pm)