Moonsighting.com calculates where moonsighting is possible for every month using the criteria, developed by Khalid Shaukat. Development of the criteria took decades of research using thousands of observations from different locations collected over a period of 170 years. These calculations agree with the observations every month since 1993.
Note for all viewers regarding this web site:
This is an advisory and consultation website, for use by Islamic organizations, Mosques, and Hilal Committees in deciding the start of Islamic months based on possibility of crescent sighting. This website is not in the business of making, implementing or dictating decisions on the start of Islamic months. It also reports actual sighting info from all over the world as they are received.