mufti yusuf danka, imam of croydon mosque states,

In 2006, I (Muhammad Yusuf Danka) attended a meeting with the Director General of London Central Masjid Dr Ahmed Dubiyan. This meeting was attended by 20 management members of the West London Masajid and Shaykhul Hadith Molana Samirud-Deen Qasmi حفظه الله from Manchester. In this meeting, Dr Dubiyan stated: ‘In our own Masjid here, there was a meeting and we in UK agreed to unite on the moon sighting announcements and criteria for this country, however, the Jamiatul Ulama Britain & Hizbul Ulama UK changed their minds the very next year, from this, our own attendees complained to us why we were not following Saudi when others who were not Arab did so, this made matters very difficult for us, even after being from a Saudi background, we (London Central Mosque) have no objection in not following the Saudi announcement.

If today, the Scholars of this country agree to unite on the specific criteria, we are ready to adopt that also.

A little history on the the whole matter

In 1984, there was an international conference held in London Central Masjid & Cultural Centre (Regents Park) for the purpose of discussing the Moon Sighting criteria of the UK:

This meeting was attended by approximately 350 Scholars from various Countries around the World, among the participants were: The Grand Mufti of Egypt, Scholars from Europe and also numerous Scholars from the UK who were specifically chosen from their association or work within a certain group of the Muslims (Da’wah Tabligh, Brelvi, Salafi etc), from the side of Jamiatul Ulama Britain, Mufti Aslam was invited, the foundation for sighting of the crescent moon to establish the new Islamic month in the UK was that the moon had to be sighted with the naked eye (Muhaqaq Ru’yat Basari). The outcome of the conference was that all the Scholars present unanimously agreed to abide by the agreed criteria. There were 30 senior Scholars from the UK present, all of whom confirmed their agreement to adopting the criteria by signing their names to it. The agreed criteria was then sent to the Grand Mufti of India, Hadhrat Mufti Abdur Raheem Lajpuri رحمه الله . The acceptance and confirmation of the criteria of 1984 is mentioned in the book Fatawa Raheemiya by Hadhrat Mufti Abdur Raheem Lajpuri رحمه الله

However, even after the conference, the unanimous agreement and all the following events, the very next year, Jamiatul Ulama Britain & Hizbul Ulama UK broke their oath and unanimous agreement to the United Moon Sighting Criteria which was written at the Regents Park Masjid conference.                                                                                              [source]