peace, I personally have not studied in detail the Quranic calendar system and when "al ashur al haram" are, but you may find these articles helpful http//mypercept.co.uk/articles/meaning-masjid-al-haram-Quran.html http//mypercept.co.uk/articles/meaning-hajj-Quran.html http//www.free-minds.org/Old/articles/science/timing.htm