When Does Ramadan Start in 2012?
Sometimes it depends on the country where you are living. Wikipedia tells us this:
Many Muslims insist on the local physical sighting of the moon to mark the beginning of Ramadan, but others use the calculated time of the new moon or the Saudi Arabian declaration to determine the start of the month. Since the new moon is not in the same state at the same time globally, the beginning and ending dates of Ramadan depend on what lunar sightings are received in each respective location. As a result, Ramadan dates vary in different countries, but usually only by a day. This is due to the cycle of the moon. When one country sees the moon, mainly Saudi Arabia, the moon travels the same path all year round and that same moon seen in the east is then seen traveling towards the west. All the countries around the world see the moon within a 24 hour period once spotted by one country in the east.
Each year, Ramadan begins about eleven days earlier than in the previous year. Astronomical projections that approximate the start of Ramadan are available. It takes about 33 years for Ramadan to complete a twelve month move across the yearly calendar plus 5 days. As Ramadan March 28, 1990 to Ramadan March 22, 2023.