Easter Sunday is the most significant and joyful holiday in Christianity. It commemorates the resurrection of Jesus Christ from the dead, as described in the New Testament, marking the culmination of Holy Week and the 40-day season of Lent.

Orthodox Easter, also known as Pascha, is the most important and joyous celebration in the Eastern Orthodox Church, commemorating the resurrection of Jesus Christ. It is the culmination of Holy Week and the central event of the Orthodox liturgical year.

Easter Monday is the day immediately following Easter Sunday, observed in many Christian traditions as part of the Easter celebrations. It holds religious, cultural, and national significance depending on the region. Although Easter Monday is not universally celebrated as a major religious holiday, it is recognized as a public holiday in many countries.

Orthodox Easter Monday, part of the week known as Bright Week, is the day immediately following Orthodox Easter Sunday. It is a time of joy and celebration, continuing the jubilant observance of the resurrection of Jesus Christ. The day holds both religious and cultural significance, with traditions varying across Orthodox Christian communities.

St. George's Day is to honor St. George, the patron saint of England. It is a public holiday in the province of Newfoundland and Labrador, Canada. Although not widely observed in Canada, it holds significance for English communities and individuals with ties to England.

Easter Tuesday in Western Christianity is not as widely observed as a religious or public holiday compared to Easter Sunday and Easter Monday, but it is part of the Easter Octave, a period of eight days celebrating the resurrection of Jesus Christ.

Orthodox Easter Tuesday is part of the extended celebration of Christ’s resurrection in Eastern Orthodox Christianity. It is a day of continued joy and fellowship, following Orthodox Easter Sunday and Easter Monday.

St. Pierre Chanel Day honors Saint Peter (Pierre) Chanel, the first martyr of Oceania and the patron saint of Oceania and missionary work. The day is especially significant in Wallis and Futuna, a French overseas collectivity in the South Pacific, where he was martyred in 1841.

Gospel Day in Tuvalu commemorates the arrival of Christianity to the islands through the work of Samoan and British missionaries in the mid-19th century, which played a major role in shaping Tuvalu's spiritual, social, and cultural identity.