ul Qur'an it is said that the Quran states that, This results that fasting is a duty for Muslims only when days and nights are producing otherwise fasting is not necessary. So the Muslims of Svalbard in Norway have to fast only when days and nights are prominent by the sun. If Ramadan comes in June/December (when days and nights are not prominent by the sun in Svalbard) they may leave fasting and then complete their fasting in March/September (when days and nights are prominent by the sun in Svalbard, Norway). In Islamic law it is called Qada. God says in the Quran: See also Ancillaries of the Faith Fidyah and Kaffara The White Days Sauma in Mandaeism Notes References External links Fasting & Ramadan: Complete Interactive Online Guide Scholarly Articles on the Law of Fasting in Islam Fasting in the Quraan Comprehensive Article and Book Collection on fasting and Ramadhan Esoteric view on sawm - fasting in Ramadan Islamic holidays and observances Time of start and end of sawn per city Health in Ramadan How Fasting Helps with Self-Control How to spend Ramadan Fasting Six Days of Shawwal: Necessary? Sawm – The Fast of Ramadan Islam