Underlying/Implicit assumption

Hi This scenario is predicated on the assumption that those "no-land days" in the calendar year are working days; correct? Because the members of the group to which there's a scheduling conflict have to observe the seventh day, and if the those extra two days were vacation days or holidays, then the religious members could just resume their count on January first, which is a Sunday per the stimulus, of every year, and take those two extra days off for holiday! In other words, per my understanding, if the religious members of the group have these two extra days off, then they would reset their count each Sunday (January first) of every year. However, if they have to work on one or both extra days, then they would not be afforded the advantage of matching the date to the day, and they would then have to count their working days while including the "no-land" days to conform to their religious constraints. Am I correct? Thank You Mazen