All Saints’ Day(Solemnity of All Saints,All Hallows, Hallowmas or All Saints)is celebrated on 1 November by most Western Christians and is to honor all saints known and unknown. In some Catholic countries, it is a holiday. It is a holy day of obligation for most Catholics except when it falls on a Saturday or Monday. In that case it is celebrated on Sunday. Eastern Orthodox is celebrated on the first Sunday after Pentecost and is called All Saints’ Sunday.
All Souls Day is to commemorate the faithful dead and is celebrated by special mass by Catholics and other Christian denominations. Some Christian churches celebrate it on a different day. It is not to be confused with Día de Muertos (Day of the Dead) which does remember friends and family who have died but is not a Catholic or Christian religious event(though it takes place from 31 Oct through 2 Nov which coincides with Halloween, All Saints and All Souls Day).
Things That Matter: Three Decades of Passions, Pastimes and Politics
Traditionally the day after All Hallows Eve (Halloween). It is a day to remember all saints, known and unknown.
