In Times of Oman, one can read that: “On the 3th of November, in Oman, the Ministry of Awqaf and Religious Affairs announced that the moon for the month of Muharram 1435 AH, the sacred month of the Hijra New Year or Islamic New Year, was not sighted, thus (Monday) corresponding to November 4th, 2013 is the completing day of Dhul Hijjah 1434 AH ( the month of Pelgrimage) and tomorrow (Tuesday) corresponding to November 5th, 2013 is the first of Muharram 1435 AH, the first and sacred month in the Islamic calendar. “
The Islamic month is calculated by the orbit of the moon around the earth. It takes about thirty days for the moon to make one complete cycle around the earth. At night the moon slowly changes over the month with a crescent moon, a quarter moon, a half moon, a full moon and then it goes to now moon at all. When the first sliver of the returning moon is seen, then it is called the new month. An Islamic month can have either 29 or 30 days in it depending on when the moon is seen.