canonical hour

canonical hour (plural canonical hours)

1. The three-hour intervals of daytime religious services appointed by canon law.
2. (Christianity) The divine office or prayers appointed to each of these times of day.

• (times of day): stound, tide

• (religious service): liturgy of the hours, little hours

• matins
• lauds
• prime
• terce, tierce
• sext
• nones, none
• vespers
• complin, compline

• book of hours

• canonical hours on Wikipedia.Wikipedia