Grand Ayatollah Ali al-Sistani when is the first of Ramadan in the UK?

Grand Ayatollah Ali al-Sistani's office typically announces the start of Ramadan based on moon sightings. For the most accurate information regarding the first of Ramadan in the UK, it's best to consult local Islamic authorities or community organizations, as they may provide specific dates based on moon sighting confirmations. The beginning of Ramadan can vary slightly by location due to differing lunar observations.