[Koha] Religious holidays with shifting dates

[library at ssst.edu.ba]

Hello all, 

I am wondering if I could get some clarification on this, as I seem to be misunderstanding how to set religious holidays which are celebrated on a moving schedule wrt the Gregorian calendar. 

I'd like to set up the coming Eid al-Adha which starts on June 28 this year, and will be observed on June 28 and 29. I thought I was supposed to select "Holidays on a range", with "From date" June 28, and "To date" June 29. However when I do that, every day from June 28 to December 31 is marked as Eid al-Adha. Should I instead go with "Holiday only on this day" for both the 28th and 29th, although that's not technically true? I will have the same issue with Eid al-Fitr, observed from April 10-11 next year.  

Best regards

Aida Đikić
Librarian