A misapplication of Aqrab al-Ayyām during persistent twilight
During persistent twilight, some institutions in the UK set the beginning of Fajr to approximately 1.20am. This is based on a misunderstanding of Fajr and misapplication of Aqrab al-Ayyām. Fajr actually occurs during this period at solar midnight (approximately 1am). The article linked below sets forward a number of arguments — from the statements of jurists, astronomy, natural order, logic, historical practice, and verses of the Qurān — that show Fajr occurs at solar midnight and why the modern application of Aqrab al-Ayyām for Fajr during persistent twilight is not correct.
Full Article: docs.muwaqqit.com/#/aqrab-al-ayyam