Without going into the .pdf files myself, what I can at least guess the reason behind it is that it is a flight schedule that is only operating for a few days due to a holiday. We normally do not run the same daily schedule for major holidays. For example, the schedule thay was included in the Nov 2nd flight schedule books was out of play from Christmas Eve up until January 4th, when it returned to the "base" schedule. A new base started this past Sunday, and will run until I believe March 7th.