List of adoption dates of the Gregorian calendar per country
Present country Historic area Year Date of the last day before the change Date of the first day after the change Days omitted
Albania Albania 1912 14 Nov 28 Nov 13
Armenia Transcaucasian Democratic Federative Republic 1918 17 Apr 1 May 13
Austria Brixen , Salzburg , Tyrol 1583 5 Oct 16 Oct 10
Austria Carinthia 1584 6 Jan 17 Jan 10
Austria Duchy of Styria 1583 14 Dec 25 Dec 10
Azerbaijan Transcaucasian Democratic Federative Republic 1918 17 Apr 1 May 13
Belarus Russia 1918 31 Jan 14 Feb 13
Belgium Flanders 1582 14 Dec 25 Dec 10
Belgium Liège 1583 10 Feb 21 Feb 10
Belgium Southern Netherlands 1582 20 Dec 31 Dec 10
Bulgaria Bulgaria 1916 31 Mar 14 Apr 13
Cambodia French colonial empire 1863
Canada French colonial empire 1582 9 Dec 20 Dec 10
Canada Nova Scotia 1710 13 Oct 3 Oct -11
Canada British Empire 1752 2 Sep 14 Sep 11
China China 1912 1 Jan
Czech Republic Bohemia 1584 6 Jan 17 Jan 10
Czech Republic Moravia 1584 3 Oct 14 Oct 10
Czech Republic Silesia 1584 12 Jan 23 Jan 10
Denmark Denmark-Norway 1700 18 Feb 1 Mar 10/11
List
This is a list of adoption dates of the Gregorian calendar per country. For explanation, see the article about the Gregorian calendar. If not stated otherwise, it concerns the transition from the Julian to the Gregorian calendar by the civil authorities. In religious sources it could be that the Julian calendar was used for a longer period of time, in particular on the Protestant and Eastern Orthodox side. The historic area does not necessarily match the present-day area or country. The column 'present country' only provides a logic search entry. With a few exceptions, the former colonies of European powers are not shown separately.