Earliest day on which All Saints Day can fall, while November 6 is the latest; celebrated on Saturday between October 31 and November 6 (Finland, Sweden)

All Saints' Day

Christian feast day

All Saints' Day, also known as All Hallows' Day, the Feast of All Saints, the Feast of All Hallows, the Solemnity of All Saints, and Hallowmas, is a Christian solemnity celebrated in honour of all the saints of the Church, whether they are known or unknown.