Bismillah. Please refer to the UK Moon Watch project: http://astro.ukho.gov.uk/moonwatch/nextnewmoon.html
Astronomical new moon (conjunction) occurs on Friday 27 June 2014 at around 8am UT (GMT), God-willing.
The first naked-eye visibility of the new crescent moon, apart from a few Pacific islands, is over Australasia on Saturday 28 June, followed by Asia (partial), Africa and the Americas on the same date. The rest of the world follows on the next day.
Hence, the first day of Ramadan 1435 in the UK occurs on the following date, depending on which method you use:
1) Conjunction-based methods: 27 or 28 June
2) Global crescent-visibility method: 29 June
3) Local (UK) crescent-visibility method: 30 June
The corresponding possible dates of Eid al-Fitr are:
1) 26 or 27 or 28 July
2) 28 or 29 July
3) 29 or 30 July
Of these methods, I prefer no. 2.
Praying for all of humanity to gain blessings of Ramadan,
Sheikh Dr. Usama Hasan (imam & astronomer), 21 June 2014
Usama Hasan, https://unity1.wordpress.com
UNITY 