Saturday
Christmas Day 2010 is a Saturday.
25 December 2010 will be a Saturday.
Saturday
Christmas day will be on a Saturday 2010!
New Year's Day is one week after Christmas Day.
Saturday Dec 25th 2010 is Christmas.
Christmas Day is great no matter what day of the week it falls on. When it is Christmas Day the day is completely different to any normal day of the week, so whatever day it is doesn't really matter.
Christmas Day in 1940 was a Wednesday.
Christmas Day will be on a Sunday in 2011.
Christmas Day will be on a Friday in 2020.
Christmas Day in 1981 was a Friday.
Christmas Day will be on a Wednesday in 2013.