For how many days is Kevin left home alone?

From Tuesday morning to Friday morning, so 3 days. Home Alone (1990) - FAQ Despite being released in 1990, there's no real attempt to set it in the same year. Christmas Day was a Tuesday in 1990. Within the reality of Home Alone, Christmas Day is a Friday. read more

Christmas Day was a Tuesday in 1990. Within the reality of Home Alone, Christmas Day is a Friday. The events shown on film denote a five day week.The film opens on the evening of Monday the 21st of December and the McCallisters leave for Paris on the morning of the 22nd. read more

Kevin is therefore left home alone for almost exactly three days (Tuesday morning to Friday morning). Each of his evenings alone end with a visit from Harry and Marv (the first where they are disturbed by the sudden light, the second where Kevin fools them with the silhouette party, the third when they actually enter the house). read more