1) Halloween is 31 October not 30th... 2) In response to the other comment, yes, Halloween is mainly based off the pagan festival of Samhain so not strictly related to Christianity at heart perhaps and is celebrated by non-Christians world over. However, the word Halloween is the shortening of "All's Hallow Eve" the day before "All saints Day" - which is a Christian festival though not really observed by any but more strict Christians.