| Date of Observance | Reasons |
|---|---|
| Thursday, 10 Jan. 1799 | In signal victory over our enemy and for the manifold and inestimable blessings which our Kingdoms and Provinces have received and daily continue to receive |
| Thursday, 12 Aug. 1802 | For God's mercies |
| Thursday, 21 Apr. 1814 | For glorious victories over our enemies |
| Tuesday, 13 Sept. 1814 | End of sanguinary contest in Europe and to give the Dominions blessings of Peace |
| Thursday, 6 Apr. 1815 | End of the war with the United States of America and restoration of the blessings of Peace |
| Tuesday, 21 May 1816 | End of war between Great Britain and France |
| Wednesday, 6 Feb. 1833 | Cessation of cholera |
| Wednesday, 1 Nov. 1834 | End of quarantine of ships at Grosse Isle |
| Monday, 26 Feb. 1838 | For the termination of the Rebellion |
| Date of Observance | Reasons |
|---|---|
| Tuesday, 18 June 1816 | End of war between Great Britain and France |
| Thursday, 14 Feb. 1833 | To continue God's mercies |
| Thursday, 30 Oct. 1834 | To continue God's mercies |
| Tuesday, 6 Feb. 1838 | To continue God's mercies |
| Date of Observance | Reasons |
|---|---|
| Thursday, 3 Jan. 1850 | For God's mercies and cessation of grievous disease |
| Wednesday, 4 June 1856 | For restoration of Peace with Russia |
| Thursday, 3 Nov. 1859 | For abundant harvest and continuation of Peace |
| Thursday, 6 Dec. 1860 | For God's mercies |
| Wednesday, 11 Nov. 1863 | For abundant harvest and continuation of Peace |
| Wednesday, 18 Oct. 1865 | For God's mercies |
| Date of Observance | Reasons |
|---|---|
| Monday, 15 April 1872 | For restoration to health of H.R.H. the Prince of Wales |
| Thursday, 6 Nov. 1879 | Blessings of an abundant harvest |
| Wednesday, 3 Nov. 1880 | Blessings of an abundant harvest |
| Thursday, 20 Oct. 1881 | Blessings of an abundant harvest |
| Thursday, 9 Nov. 1882 | Blessings of an abundant harvest |
| Thursday, 8 Nov. 1883 | Blessings of an abundant harvest |
| Thursday, 6 Nov. 1884 | Blessings of an abundant harvest |
| Thursday, 12 Nov. 1885 | Blessings of an abundant harvest |
| Thursday, 18 Nov. 1886 | Blessings of an abundant harvest |
| Tuesday, 21 June 1887 | 50th Anniversary of Her Majesty's accession to Throne |
| Thursday, 17 Nov. 1887 | Blessings of an abundant harvest |
| Thursday, 15 Nov. 1888 | Blessings of an abundant harvest |
| Thursday, 7 Nov. 1889 | Blessings of an abundant harvest |
| Thursday, 6 Nov. 1890 | Blessings of an abundant harvest |
| Thursday, 12 Nov. 1891 | Blessings of an abundant harvest |
| Thursday, 10 Nov. 1892 | Blessings of an abundant harvest |
| Thursday, 23 Nov. 1893 | Blessings of an abundant harvest |
| Thursday, 22 Nov. 1894 | Blessings of an abundant harvest |
| Thursday, 21 Nov. 1895 | Blessings of an abundant harvest |
| Thursday, 26 Nov. 1896 | Blessings of an abundant harvest |
| Tuesday, 22 June 1896 | Diamond Jubilee of H.M. Queen Victoria |
| Thursday, 25 Nov. 1897 | Blessings of an abundant harvest |
| Thursday, 24 Nov. 1898 | Blessings of an abundant harvest |
| Thursday, 19 Oct. 1899 | Blessings of an abundant harvest |
| Thursday, 18 Oct. 1900 | Blessings of an abundant harvest |
| Thursday, 28 Nov. 1901 | Blessings of an abundant harvest |
| Thursday, 26 June 1902 | King Edward VII's Coronation (cancelled, changed to August 9, 1902) |
| Saturday, 9 Aug. 1902 | King's Coronation, as a day of General Thanksgiving and rejoicing |
| Thursday, 16 Oct. 1902 | As a day of General Thanksgiving |
| Thursday, 15 Oct. 1903 | Blessings of an abundant harvest |
| Thursday, 17 Nov. 1904 | Blessings of an abundant harvest |
| Thursday, 26 Oct. 1905 | Blessings of an abundant harvest |
| Thursday, 18 Oct. 1906 | Blessings of an abundant harvest |
| Thursday, 31 Oct. 1907 | Blessings of an abundant harvest |
| Monday, 9 Nov. 1908 | Blessings of an abundant harvest |
| Monday, 25 Oct. 1909 | Blessings of an abundant harvest |
| Monday, 31 Oct. 1910 | Blessings of an abundant harvest |
| Monday, 30 Oct. 1911 | Blessings of an abundant harvest |
| Monday, 28 Oct. 1912 | Blessings of an abundant harvest |
| Monday, 20 Oct. 1913 | Blessings of an abundant harvest |
| Monday, 12 Oct. 1914 | Blessings of an abundant harvest |
| Monday, 11 Oct. 1915 | Blessings of an abundant harvest |
| Monday, 9 Oct. 1916 | Blessings of an abundant harvest |
| Monday, 8 Oct. 1917 | Blessings of an abundant harvest |
| Monday, 14 Oct. 1918 | Blessings of an abundant harvest |
| Monday, 13 Oct. 1919 | Blessings of an abundant harvest |
| Monday, 18 Oct. 1920 | Blessings of an abundant harvest |
| Date of Observance | Reasons |
|---|---|
| Monday, 8 Nov. 1921 | On Armistice Day |
| Monday, 7 Nov. 1922 | On Armistice Day |
| Monday, 6 Nov. 1923 | On Armistice Day |
| Monday, 10 Nov. 1924 | On Armistice Day |
| Monday, 9 Nov. 1925 | On Armistice Day |
| Monday, 8 Nov. 1926 | On Armistice Day |
| Monday, 7 Nov. 1927 | On Armistice Day |
| Monday, 6 Nov. 1928 | On Armistice Day |
| Monday, 11 Nov. 1929 | On Armistice Day |
| Monday, 10 Nov. 1930 | On Armistice Day |
| Date of Observance | Reasons |
|---|---|
| Monday, 15 Oct. 1931 | For general thanksgiving to Almighty God for the blessings with which the people of Canada have been favoured |
| Monday, 10 Oct. 1932 | For general thanksgiving to Almighty God for the blessings with which the people of Canada have been favoured |
| Monday, 9 Oct. 1933 | For general thanksgiving to Almighty God for the blessings with which the people of Canada have been favoured |
| Monday, 8 Oct. 1934 | For general thanksgiving to Almighty God for the blessings with which the people of Canada have been favoured |
| Thursday, 24 Oct. 1935 | (first fixed on Monday Oct. 14, then changed to Oct. 24, due to General elections on Oct. 14) |
| Monday, 12 Oct. 1936 | For general thanksgiving to Almighty God for the blessings with which the people of Canada have been favoured |
| Monday, 11 Oct. 1937 | For general thanksgiving to Almighty God for the blessings with which the people of Canada have been favoured |
| Monday, 10 Oct. 1938 | For general thanksgiving to Almighty God for the blessings with which the people of Canada have been favoured |
| Monday, 9 Oct. 1939 | For general thanksgiving to Almighty God for the blessings with which the people of Canada have been favoured |
| Monday, 14 Oct. 1940 | For general thanksgiving to Almighty God for the blessings with which the people of Canada have been favoured |
| Monday, 13 Oct. 1941 | For general thanksgiving to Almighty God for the blessings with which the people of Canada have been favoured |
| Monday, 12 Oct. 1942 | For general thanksgiving to Almighty God for the blessings with which the people of Canada have been favoured |
| Monday, 11 Oct. 1943 | For general thanksgiving to Almighty God for the blessings with which the people of Canada have been favoured |
| Monday, 9 Oct. 1944 | For general thanksgiving to Almighty God for the blessings with which the people of Canada have been favoured |
| Monday, 8 Oct. 1945 | For general thanksgiving to Almighty God for the blessings with which the people of Canada have been favoured |
| Monday, 14 Oct. 1946 | For general thanksgiving to Almighty God for the blessings with which the people of Canada have been favoured |
| Monday, 13 Oct. 1947 | For general thanksgiving to Almighty God for the blessings with which the people of Canada have been favoured |
| Monday, 11 Oct. 1948 | For general thanksgiving to Almighty God for the blessings with which the people of Canada have been favoured |
| Monday, 10 Oct. 1949 | For general thanksgiving to Almighty God for the blessings with which the people of Canada have been favoured |
| Monday, 9 Oct. 1950 | For general thanksgiving to Almighty God for the blessings with which the people of Canada have been favoured |
| Monday, 8 Oct. 1951 | For general thanksgiving to Almighty God for the blessings with which the people of Canada have been favoured |
| Monday, 13 Oct. 1952 | For general thanksgiving to Almighty God for the blessings with which the people of Canada have been favoured |
| Monday, 12 Oct. 1953 | For general thanksgiving to Almighty God for the blessings with which the people of Canada have been favoured |
| Monday, 11 Oct. 1954 | For general thanksgiving to Almighty God for the blessings with which the people of Canada have been favoured |
| Monday, 10 Oct. 1955 | For general thanksgiving to Almighty God for the blessings with which the people of Canada have been favoured |
| Monday, 8 Oct. 1956 | For general thanksgiving to Almighty God for the blessings with which the people of Canada have been favoured |
| Monday, 14 Oct. 1957 | For general thanksgiving to Almighty God for the blessings with which the people of Canada have been favoured |
| Years thereafter | Proclamation of 1957 fixing for the years thereafter Thanksgiving Day on second Monday in October |