Do the same thing when you are in Roman Catholic countries; go to their churches, see all their ceremonies: ask the meaning of them, get the terms explained to you. As, for instance, Prime, Tierce, Sexte, Nones, Matins, Angelus, High Mass, Vespers, Complines, etc.
Philip Dormer Stanhope (Earl of Chesterfield), Letters to His Son on the Art of Becoming a Man of the World and a Gentleman, 1748. Amazon
Francis, in turn, was deeply impressed by the religious devotion of the Muslims, especially by their five daily calls to prayer; it is quite possible that the thrice-daily recitation of the Angelus that became current in Europe after this visit was precipitated by the impression made on Francis by the call of the muezzin (just as the quintessential Catholic devotion of the rosary derives from Muslim prayer beads).
Despite much commentary about materialistic Ireland having entered a post-Catholic era, it is still a country that twice a day marks the hour on the state broadcast channel RTE with the tolling of the Angelus bells calling the faithful to prayer and filmed scenes of citizens taking a break in their working day to gaze heavenward.
Vilnius, the size of an English market town, is where nuns sing the Angelus against the descant of builders' drills, and outfitters that could have graced Arbroath High Street 50 years ago are being superseded by Emporio Armani.