December 17 is not a Very Merry Christmas Party, but the Magic Kingdom is open til Midnight. Will they have the Christmas parade that night, or just Spectromagic?
I could be wrong but I don't think they start running the Christmas Parade routinely until the MVMCPs are over...so that would be after the 20th. Up until then it will be the regular parade.
You are correct Googy4tink...The Christmas Parade will not be presented to day guests until December 21 (as the day parade) until then it is exclusive to the MVMCParties. The 17th will be Share a Dream Come True and Spectro Magic.