The Rumi calendar, a specific calendar based on the Julian calendar, was officially used by the Ottoman Empire after Tanzimat and by its successor, the Republic of Turkey until 1926. It was adopted fo
1911 multilingual Ottoman calendar page: The upper left shows the Rumi date in Ottoman Turkish: year 1327, 7 Nisan (٧ نیسان ١٣٢٧) The same Julian date (7 April, ΑΠΡΙΛΙΟΣ 7) and day (Thursday, Πέμπτη) appears below in Greek with the AD year 1911 Next to that is the Gregorian date (20 April, AVRIL 20) and day (Jeudi) in French Above these two is 30 (twice), the number of days in the Julian and Gregorian months; the month (April, Априлий) and day (Thursday,