All Saints’ Day in Western Christianity Date in the current year: November 1, 2024

All Saints' Day is also known as Feast of All Saints, Solemnity of All Saints, All Hallows, or Hallowmas. It honors all the saints, known and unknown. The holiday was introduced in 609 and was originally celebrated in May. It was moved to November 1 in the 8th or 9th century.

It is believed that the date of November 1 was chosen because it was the date of Samhain, the Celtic festival of the dead. Traditions of both holidays, the Christian one and the pagan one, have blended over the years, creating the holiday of Halloween celebrated on the eve of All Saint's Day.

In many countries, it is customary to visit the graves of deceased relatives on November 1. People clean the tombs, bring flowers and light candles. In many Lutheran congregations, Feast of All Saints is observed on the Sunday before or after November 1 along with Reformation Day.

In Mexico and some other countries, Feast of All Saints is also known as Day of the Innocents, it honors diseased infants and children.