26/10/2011 -  New Moon, or Crescent Moon, which marks the beginning of each month in the Islamic calendar. In Saudi Arabia, Iran and Pakistan, if the weather is cloudy when the new moon is expected, observers are sent up in airplanes, and a special committee consisting of religious scholars (ulama), along with the help from 150 observatories, convene monthly to decide the sighting of the New Moon, and thus the exact beginning of the month.

sebastien tellier  - l'amour et la violence