In a nutshell and according to the principles of Islam, Moon sighting is only done and valid after sunset. Moonsighting during the day has no basis or foundations in Islamic Law and it is to be disregarded and rejected for the establishment of Ramadhan, Shawwal etc.
Islamic dates and calendars 1439
Wifāqul Ulāmā have received many requests to visit various Mosques throughout the country and give public presentations on the subject of Moonsighting. It is for this reason that we have decided to put together a scientific paper on visibility curves and will also a few presentations covering the most important aspects of this topic.
Islamic dates and calendars for 1438
Islamic dates and calendars 1429
Mufti Rasheed Ahmed Ludhianwi (RA) negates Saudia Moon Sighting …It is not known that the number of people sighting the moon in Saudia is of satisfactory quantity. The decision of the Saudi government is not only against the established principles...
Endorses Moroccan Moon Sighting for Britain Shaykhul-Islam Mufti Taqi Usmani You have discussed the problems of moon sighting in the United Kingdom. The decision of moon sighting based entirely on calculations is not correct according to Jamhoorummat and I think that Shar’e...
In the Name of Allah, the Most Gracious, the Most Merciful. As-salāmu ‘alaykum wa-rahmatullāhi wa-barakātuh This statement is being issued on the 01st of August 2019 and supersedes all previous statements on the subject. Wifaqul Ulama has a set Moon sighting criteria...
We end this release by advising British Muslims to be cautious and to let this incident be a stark reminder for the Ulamā about the need to scrutinise the testimonies and news of Moonsighting. This is not the first incident of mistaken Moonsighting and unfortunately it will not be the last.

Reliance on Science

Does Wifaqul Ulama rely on Science instead of Moon Sighting? (Qari) Muhammad Shoyaib Nurgat Maulana Marghoob Ahmed Lajpuri Question: Please explain as to why Wifaqul Ulama relies on Astronomical Calculations and Science instead of (actual) Moon Sighting? In the Name of Allah,...