Thank you very much John. Incredibly fast answer !!! BTW Is there an easy /practical way to convert holidays dates to number of weeks? daniel 2010/2/10 John Rakestraw > >>>>> Daniel Martins writes: > > > Someone could send me an example of the use of the org-diary-class ?? > > *** 12:15-13:05 Class > <%%(org-diary-class 1 13 2010 5 3 2010 1 3 7 10 14)> > <%%(org-diary-class 1 13 2010 5 3 2010 3 10)> > <%%(org-diary-class 1 13 2010 5 3 2010 5 10 13)> > > Class meets Mon-Wed-Fri from Jan 13 to May 3 from 12:15 to 13:05, with > holidays as indicated. Friday's class, for example, doesn't meet in weeks > 10 and 13. > > -- > John Rakestraw >