Salaam alaikum wa rahmatullah wa barakatuh

According to this article (link given below) then if the timing of the fast exceeds 18 hours then are you allowed to follow the Saudi Arabian fasting times.

http://www.bbc.co.uk/news/magazine-19199411

Could you please verify this?

Thank you
Faisal Haider

How could you follow saudi timings if you live in uk? If saudi don't see moon and you see moon before them will you wait? You should be following your local time for fasting.