UNIFIED WORLD ISLAMIC CALENDAR -what are the barriers?

Why are the Islamic dates in such a mess? Which convention should Muslims use to determine the beginning and ending of Islamic months?Why Muslims cant have a unified World Islamic calendar?
Like so many other years, Muslims once again were confused as to when the Eid was. The Prophet (PBUH)had fixed the date for Eidul fitr on the first of Shawwal.Eid ul Fitr was actually observed on five days.Therefore, the answer to the question is not clear. ias it obligatory for you to follow the sighting of the new moon in the place where you are. In terms of Ramadan, I understand the “complexities” and “differences of opinion” of having everyone start/end on the same day. My question now is in regards to Eid-ul-Adha - specifically the day of Arafat. Do we not know, 9 days in advance which day Arafat will occur (for those performing hajj), and hence Eid-ul-Adha. Does it make sense that some Muslims around the world would be fasting their own “day of Arafat†when in fact there is not a single person on the mountain of Arafat?”
 
Top