This perpetual calendar can be used in any year in the present or past that starts on a Friday and does not include Leap Day, such as 2055, 2049, 2038, 2027, 2021, 2010, 1999, 1993, 1982, 1971, 1965, 1954, 1943, 1937, 1926, 1915, 1909, 1897, 1886, 1875, 1869, 1858, 1847, and 1841.