Vespers in the context of "St John Passion"

The observance of Christmas around the world varies by country and by religion. The day of Christmas, and in some cases the day before and the day after, are recognized by many national governments and cultures worldwide, including in areas where Christianity is a minority religion which are usually found in Africa and Asia. In some non-Christian areas, periods of former colonial rule introduced the celebration (e.g. Hong Kong); in others, Christian minorities or foreign cultural influences have led populations to observe the holiday.

Christmas traditions for many nations include the installing and lighting of Christmas trees, the hanging of Advent wreaths, Christmas stockings, candy canes, setting out cookies and milk, the creation of Nativity scenes depicting the birth of Jesus Christ and giving gifts to others. Christmas carols may be sung and stories told about such figures as the Baby Jesus, Saint Nicholas, Santa Claus, Father Christmas, Christkind or Grandfather Frost. The sending and exchange of Christmas card greetings, observance of fasting and special religious observances such as a midnight Mass or Vespers on Christmas Eve, the burning of a Yule log, and the giving and receiving of presents are also common practice. Along with Easter, Christmas is one of the most important periods on the Christian calendar, and is often closely connected to other holidays at this time of year, such as Advent, the Feast of the Immaculate Conception, Saint Nicholas Day, Saint Stephen's Day, New Year's, and the Feast of the Epiphany.

Christmastide, also known as Christide, is a season of the liturgical year in most Christian churches.

For the Catholic Church, Lutheran Church, Anglican Church, Methodist Church and some Orthodox Churches, Christmastide begins on 24 December at sunset or Vespers, which is liturgicus the beginning of Christmas Day. Most of 24 December is thus not part of Christmastide, but of Advent, the season in the Church Year that precedes Christmastide. In many liturgical calendars Christmastide is followed by the closely related season of Epiphanytide that commences at sunset on 5 January—a date known as Twelfth Night.

An antiphon (Greek ἀντίφωνον, ἀντί "opposite" and φωνή "voice") is a short chant in Christian ritual, sung as a refrain. The texts of antiphons are usually taken from the Psalms or Scripture, but may also be freely composed. Their form was favored by St. Ambrose and they feature prominently in Ambrosian chant, but they are used widely in Gregorian chant as well. They may be used during Mass, for the Introit, the Offertory or the Communion. They may also be used in the Liturgy of the Hours, typically for Lauds or Vespers.

They should not be confused with Marian antiphons or processional antiphons.

A watchnight service (also called Watchnight Mass) is a late-night Christian church service. In many different Christian traditions, such as those of Moravians, Methodists, Catholics, Lutherans, Anglicans, Baptists, Adventists and Reformed Christians, watchnight services are held late on New Year's Eve, which is the seventh day of Christmastide. This provides the opportunity for Christians to review the year that has passed and make confession, and then prepare for the year ahead by praying and resolving. The services often include singing, praying, exhorting, preaching, and Holy Communion.

Watchnight services can take the form of Watchnight Covenant Renewal Services, Watchnight Vespers services, Watchnight Vigil services, or Watchnight Masses. As Watchnight services bring in the New Year by glorifying God, they are seen by many Christians as being preferable to "drunken revelry" in popular cultural celebrations that are commonplace in some localities.

Evensong is a church service traditionally held near twilight focused on singing psalms and other biblical canticles. It is loosely based on the canonical hours of vespers and compline. Old English speakers translated the Latin word vesperas as æfensang, which became 'evensong' in modern English. Typically used in reference to the Anglican daily office's evening liturgy, it can also refer to the pre-Reformation form of vespers or services of evening prayer from other denominations, particularly within the Anglican Use of the Catholic Church.

The Angelus (/ˈændʒələs/; Latin for "angel") is a Catholic devotion commemorating the Incarnation of Christ. As with many Catholic prayers, the name Angelus is derived from its incipit—the first few words of the text: Angelus Domini nuntiavit Mariæ ("The Angel of the Lord declared unto Mary"). The devotion is practised by reciting as versicle and response three Biblical verses narrating the mystery, alternating with the prayer "Hail Mary". The Angelus exemplifies a species of prayers called the "prayer of the devotee".

The devotion is traditionally recited in Roman Catholic churches, convents, monasteries and by the faithful three times a day: in the morning, at noon and in the evening (usually just before or after Vespers). The devotion is also observed by some Western Rite Orthodox, Lutheran, and Anglican churches.

The Cappella Giulia, officially the Reverend Musical Chapel Julia of the Sacrosanct Papal Basilica of Saint Peter in the Vatican, is the choir of St. Peter's Basilica that sings for all solemn functions of the Vatican Chapter, such as Holy Mass, Lauds, and Vespers, when these are not celebrated by the Pope (for functions celebrated by the Pope, the Sistine Chapel Choir sings instead). The choir has played an important role as an interpreter and a proponent of Gregorian chant and sacred polyphony.

Orthros (Greek: ὄρθρος, meaning "early dawn" or "daybreak") or útrenya (Slavonic ѹ́тренѧ) in the Byzantine Rite of the Eastern Orthodox Church and the Eastern Catholic Churches, is the last of the four night offices (church services), the other three being vespers, compline, and midnight office. Traditionally, in monasteries it is held daily so as to end immediately following sunrise, in contrast to parishes where it is held only on Sundays and feast days. It is often called matins after the office it most nearly corresponds to in Western Christian churches.

Orthros is the longest and most complex of the daily cycle of services. It is normally held in the early morning, often — always in monasteries — preceded by the midnight office, and usually followed by the First Hour. On great feasts it is held as part of an all-night vigil commencing the evening before, combined with an augmented great vespers and the first hour. In the Russian tradition, an all-night vigil is celebrated every Saturday evening, typically abridged, however, in spite of its name, to as short as two hours. In the Greek parish tradition, orthros is typically held immediately prior to the beginning of the divine liturgy on Sunday and feast day mornings.

The Lity or Litiyá (Greek: Λιτή(Liti), from litomai, "a fervent prayer") is a festive religious procession, followed by intercessions, which augments great vespers (or, a few times a year, great compline) in the Eastern Orthodox and Byzantine Catholic churches on important feast days (and, at least according to the written rubrics, any time there is an all-night vigil). Following a lity is another liturgical action, an artoklasia, and either of these terms may be used to describe both liturgical actions collectively.