What month and day is All Saints Day on?

Answer 1

All Saints Day is honored on November 1st every year on the Roman Catholic calendar.

Roman Catholic AnswerNovember 1 is a holy day of Obligation in the Church.

from Encyclopedia of Catholic Devotions and Practices by Ann Ball, Our Sunday Visitor, Inc. C 2003

In the fourth century, groups of martyrs, and later other saints, were honored on a common day in various places. In 609 or 610, the Pantheon, a pagan temple in Rome, was consecrated as a Christian Church in honor of Mary and the martyrs and, later, all saints. In 835, Pope Gregory IV fixed November 1 as the date of the observance.