Holiday is the class of time periods that are observed as holidays in a country, culture, or religion. Holidays may recur annually on the same date, or they may be moveable, for example, UnitedStatesThanksgivingDay falls on the last Thursday of each November.
||Advent||An instance of Advent (LatinLanguage adventus = coming) is a TimeInterval that begins with an AdventSunday and includes the four Sundays preceding an instance of ChristmasDay. During this period, observant members of Christianity ritually anticipate the recurring celebration of the birth of Jesus of Nazareth. Note that Advent is observed only in Western Christianity, which includes RomanCatholicism, Protestantism, and Anglicanism. The analog of Advent in Eastern Christianity, which includes EasternOrthodoxChristianity, is the Nativity Fast, which differs from Advent in length and significance.|
| ||AdventSunday||An instance of AdventSunday is a Sunday that begins an instance of Advent.|
| ||AscensionThursday||An instance of AscensionThursday is a ChristianHoliday that celebrates the bodily ascension of Jesus to heaven following his resurrection.|
| ||ChristmasDay||An instance of ChristmasDay is a ChristianHoliday on which observant members of Christianity celebrate the birth of Jesus of Nazareth. In both the Gregorian and Julian calendars, ChristmasDay falls on December 25th, but since the two calendars are currently off by 13 days, the ChristmasDays assigned by each correspond to different actual (sidereal, UTC) days.|
| ||EasterSunday||An instance of EasterSunday is a ChristianHoliday celebrating the resurrection of Jesus of Nazareth. Easter is a movable holiday, falling between late March and late April for Western Chrisitanity (Gregorian calendar), and between early April and early May for Eastern Christianity (Julian calendar). Easter is calculated to occur near the Jewish holiday Passover, the date of which is determined according to the Jewish lunar calendar.|
| ||Epiphany||An instance of Epiphany is a ChristianHoliday that is celebrated on January 6th in both the Gregorian and Julian calendars. In Western Christianity, it commemorates the visit of the Magi to the infant Jesus. In Eastern Christianity, it commemorates Jesus's baptism in the Jordan River and manifestation as the Son of God. In this tradition, the holiday is also called Theophany.|
| ||Lent||In Western Christianity, an instance of Lent is a 40-day period of (relative) fasting and reflection preceding an instance of EasterSunday. In the US, Lent is observed predominantly by RomanCatholics, with lesser participation by members of other Christian denominations, some of which even consider Lent not to be a legitimate ChristianHoliday.|
| ||PalmSunday||An instance of PalmSunday is a ChristianHoliday that commemorates the |
Triumphal Entry of Jesus into Jerusalem in the days preceding his crucifixion. The actual date of a PalmSunday is determined by the date of the corresponding EasterSunday, and so, like Easter, Palm Sunday is a MoveableHoliday.
| ||Pentecost||An instance of Pentecost is a ChristianHoliday that commemorates the descent of the Holy Spirit onto the Apostles and other followers of Jesus, as described in the Book of Acts.|