At every church I've ever attended, there were Christmas eve services and a Christmas day service. Even if Christmas day fell on a Tuesday. It was usually just one service even if the church regularly had two in the mornings. At my old church in Pittsburgh, there's a 10am service replacing the usual 8:15 and 11:00 Sunday services.
AD, I agree with you guys!!!!! I was merely pointing out that the minister in this case is correct about the way time is calculated in The Church. As you may know, I'm Greek Orthodox. We have a Liturgy Christmas Eve and Christmas Day, even if it is on a Tuesday.