However, for purposes of the 24 hour notice publication requirements of R.S. 42:19, the weekend and legal holiday day (Monday) cannot be counted in the calculation of the 24 hours. In this case, as the 5:00 p.m. Monday meeting falls on a legal holiday, instead of posting the notice on Friday by 5:00 p.m. the notice must be published by the end of Thursday, preferably by the close of business.