Moon Sighting

When Does The Islamic Month Begin? - 29th Ramadan 1434/2013 Sayed Ahmed Al-Qazwini	Ahkam in Brief - The Lunar Month & Moon Sighting
Why Do Scholars Disagree on Moon Sighting ? - Ramadan 1436/2015 Sayed Ahmed Al-Qazwini	What Criteria Must be Met for the Moon to be Visible? - Ramadan 1436/2015 Sayed Ahmed Al-Qazwini
The Birth of the Moon - In-Depth study on moon sighting

I am confused about the differences on Eid. Is it a case of one Marja sighting the moon and another one not being able to sight it? Rebecca Masterton	I am confused about the differences on Eid. Is it a case of one Marja sighting the moon and another one not being able to sight it? Abbas Di Palma
I live in a Gulf country where the local Islamic date is different from what the Marja’ I follow has declared. Which one should I follow? Sayyed Mohammad Al-Musawi